HYDROPONICS FAQ
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Hydroponics FAQ

Hi fellow hydro nut! Welcome to our fun and free Hydroponics Forum. Here you will access a goldmine of information to round out your knowledge base. There is no member login or registration required! (You might just call this a "Mini Forum").

Feel free to ask a question, write about your own experiences, or comment on any subject posted by others. The idea here is: ask a question, or answer one. In this way, our Forum truly becomes a melting pot of great ideas, alternative solutions and creative problem-solving.



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Hydroponics FAQ

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What Other Visitors Have Posted

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ebb and flow drainage concern 
Hi, I am a newcomer to hydroponics, and I just built my first ebb and flow system. I used a heavy duty 8 gal meat lug for my flood tray, and used a generic …

New To Hydro Need Help On Lighting 
Okay I'm Go Try To Be clear & Brief.. I'm New To This Decided To Make Jump.. Well My Setup Is almost Complete Few Minor Details Left But My Thing Is …

Tomato & cucumbers not producing  
Tomato & cucumber plants have lots of healthy growth & are producing flowers. Cukes have lots of flowers & thumbnail size cukes. One cuke reached mature …

PH Falling - Tomatoes 
I was having trouble with a nutrient batch. I went from having a lot of blooms to no blooms and could not accurately control the PH. I changed out …

leaves turning yellow and then falling off help 
Im growing cucumber and tomato plants inside using a different pot and for each plant I germed them from seeds to plants then put them in after they were …

Gus 
Hi, I've just started a NFT hypotonic system about 18 meters in length and my nutrient tank at bottom is about 45 liters ,my questions is how often should …

How much nutrient solution should one tomato plant use? 
How much nutrient solution should one outdoor dutch bucket tomato plant use?

Trouble Controlling Nutrient Reservoir Temperature 
Hi, I'm having an unexpected problem with rising temperatures in my nutrient reservoir. I say its unexpected because the temperature in the grow …

Reservoir on Cold Basement Floor 
I'm setting up a couple of drip system for my warm weather crops (tomatoes, peppers, kitchen herbs, etc.) in my 50 degree New Hampshire basement. They …

Coco Coir and Perlite Mix Instructions? 
I followed the instructions on this site and used a 50/50 mix of coco coir and perlite. But, it did give specifics like 50/50 by volume, by weight, …

How Long Will a Tomato Plant Produce? 
Hi, Here in Southern Ohio we get our first frosts around mid-October, which ends production. Since it probably won't front in my basement and I …

Problems Starting Seedlings 
Hi, Started tomato and pepper seedlings in rockwool in a domed seedling chamber. Planted 2 tomato seeds each in five cubes soaked in a weak nutrient …

GRAFTED HEIRLOOM TOMATOES FOR HYDROPONIC GREENHOUSE 
DOES ANYONE HAVE ANY EXPERIENCE OR KNOWLEDGE IF GRAFTED HEIRLOOM TOMATOES WOULD BE ECONOMICALLY BENEFICIAL IN GREENHOUSE HYDROPONIC SITUATION HERE IN SOUTH …

My First Hydro System 
I'm sure most of you have heard this question posed a thousand different ways and have answered it too many times to count. I have scoured the interwebs …

Recycling Perlite in Dutch Pots? 
I run a string of twentyfour 5 gallon dutch pots for tomato growing using Perlite as the growing medium. I am trying to figure out if I should just replace …

Repairing roots added too much magnesium 
I used too much Epsom salt as a magnesium deficiency, and damaged roots plant growing but is damaged, What can I do to repair it. Should I try with root …

Leaky uniseals 
I've installed uniseals onto 5 gal buckets and have several leaks. Edges are smooth, used silicone grease to install PVC but still have leaks. Any …

stalky lettuce 
I have set up a hydro system to grow lettuce outdoors on my patio here in Florida. My lettuce has been growing very stalky and not forming into nice tight …

Grafted Tomato plants vs. Non-grafted Tomato plants? 
In my hoophouse I have twenty-four Dutch Pots with Perlite that I grow my tomatoes in. This past season production has been off considerably, largely due …

First Time Growing Awesome Results! 
So I began this out of frustration. Growing vegetables outside in Florida is difficult due to the bugs. So I decided to give Hydroponics a try. My system …

my hydroponic vertical garden 
(Click on each photo to enlarge) I took a storage closet, lined the walls with mylar film, added 4' t5 grow lights(4 bulbs). On the 3 walls I placed 3" …

HELP!!! 
I am running an NFT system and using a 55 gallon reservoir. When I first transplanted my sprouting's into the system the first two weeks the stayed perfectly …

how tall does green peppers grow. 
hi another newbie here! im busy designing my greenhouse and want to know how tall my green peppers will grow. can I grow a row above another row?? ive …

First time at hydro: Healthy but slow growing plants 
Ok I have 2 plants from seeds (unknown strains or genetics) in a cupboard in 75mm high pots (plenty of drainage) that have spent a week under clone light …

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Starting out in Alaska 
Hello, I am starting out my own indoor hydroponic garden in Alaska mainly because our growing season is so short it is one of the only options for me. …

Enclosed Porch, Emily's Garden & The Root Spa 
Newbie to Hydroponics: Would like to put my garden in my enclosed porch, I have an air conditioner as I live in northeastern Mississippi, high humidity …

Tomato pollination Problems 
Having problems with getting my Beefsteak tomatoes to set fruit. Have changed the nutrient formulation as recommended, and am getting flowers, it is not …

are leds any good at growing  
are leds any good for growing indoors? ---------------------------------------------------------- Answer from Stella/Simon: Hi there anonymous, …

Transplant to soil? 
Once an individual plant has been established hydroponically is it then possible to transfer it to a normal pot with soil so that I am able to give it …

Starting Seeds in Hydroponics 
I am starting my seeds directly in 1.5" rockwool cubes in Hydroton in individual buckets. The 2 seeds have just started to sprout. They are uner 400 …

PH dropping to quick 
Hello, I'm running a 150 gallon reservoir feeding 360 heads of lettuce in the flood table. I have an automatic mixing/monitoring system that is keeping …

Strawberry plant wilt after nutrient change 
Every time I change nutrients my strawberry plants wilt and the white roots that were there are brown. After a couple days the plants recover and after …

is there a wireless solution for a temperature and humidity sensor? 
Do Greenhouses without power supplies need wireless temperature and humidity sensors? Howard

Growing Outdoors 
I'm contemplating a hydroponic garden outdoors but everything I've seen so far is about growing indoors. Also I live in Lima Peru so I'm not sure what …

What grows well in a Hydro Farm? 
Hi there I purchased the water farm hydroponic system a while ago because I moved house and only have a small concrete yard instead of a garden and greenhouse …

How do you light both growth stages? 
I'm very tempted by your 400 watt HID combo light kit to grow tomatoes. But I assume all plants would have to be started at the same time under the MH …

nutrients 
Hi, Im new to hydroponics, I bought some nutrient at local supply 10-1-5 the bottle said 4 teasp pr gallon however the store told me to start off with …

NFT Systems – Home Built DIY vs Commercial Systems 
I’ll admit to being a newby to Hydroponics, but I’ve been researching various systems for some time and frankly I’m confused. Let’s start with the NFT …

House and garden Top Booster on tomatos? 
I've got a green house running hydro with a lot of tomato and pepper plants. Running House and Garden aqua flakes in a home made drip,ebb & flow and deep …

Does lettuce actually flower? 
I always get confused when looking at nutrients which indicate "grow" and/or "bloom". When growing lettuce, do you actually worry about the bloom part …

Figuring PPM 
So my PPM out of the tap is about 200. If I am trying to hit a target PPM of 700 would I want to add 700 ppm of nutes or only 500? Thank you! ---------------------- …

hydroponic solution 
what do u do with the spent solution when you clean your hydro systems can you water your outdoor veg garden with it would it help it or harm it thanks …

NEWBIE TO HYDROPONICS what brands would you recommend? 
What brands (and specific equipment if possible) are good for a newbie? I'd like to start up some tomatoes but I'm not sure what brands to use - there …

3D Printable Hydroponic Garden 
Hey everybody. We are designing a 3D printable, hydroponic, rotating garden. This is an open source project and you can already download parts of the …

Nutrient Solution? 
I started with Hydroponics several months ago. I have several vegetables growing at different stages so I am contantly mixing up different batches of …

Chemical Free Nutrients 
I am new to your site and new to hydroponics. I would like to start with aeroponics due to space restrictions. On your website you recommend the GH Flora …

bud forming issues 
using a bubbler set up when buds start to form no pistils grow and when they start to appear as soon as they are visible they turn black at tips and pistils …

The Best Growing Medium for Seedlings and beyond 
I purchased rockwool cubes to start my seedlings off in however, I'm not sure if its the best to use. I was wondering if I can get some feed back.

Help with Lemon Basil 
What am I doing wrong? I started from seed and all was going great. Then they started to go yellow and wither. I was watering 15min/day with plan water. …

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White/brown border on tomato leaves 
I am using a continuous flow system. I have white/brown border on my lower tomato leaves. Is this due to a nutrient problem of some kind? _____________________ …

NEWBIE! What am I doing wrong? 
So I bought this great hydrophonics system and I was ready to begin my seedlings. I put the seed in rock wool and placed them in a tray on top of a heat …

Fodder feed 
I have 2 horses and a dozen chicken. With the cost of hay and grain going up every week, I have started to look into a Fodder Feed system, but the cost …

Compost tea 
I have built an ebb and flow system with 12 Gal in the nutrient tank. I would like to make compost tea from real backyard compost to use for the solution. …

hard water nutrients 
i have bought hard water nutrients for my hydroponic garden but i live in a soft water area. Can i still use them or will i kill them. Answer from …

a little white mold on starter plugs 
This is a true newbie's question. I've just started my very first seeds in the starter plugs. I've noticed that a thin layer of what looks like white mold …

Clay balls problem 
have recently brought some clay balls and they seem to be raising the ph of my system have done many test and it the caly ball is the problem does any …

How do you mix up nutrients? 
Hi! I'm interested in setting up my own hydroponics. I already understand how it is done however there's not much information about the formula on how …

New and Learning 
Hi Stella! I have been a fan of your site for a long time now; it has helped me so much in getting myself set up to start hydro gardening in my brand …

End rot 
Is there a cure for end rot on tomatoes or is the whole plant a loss? I understand once a tomatoe has it that tomatoe is gone but can I fix it so the rest …

compost in Hydro setup 
My crazy idea !! Ok i love the hydro system but don´t like to ad "fake" fertilizers my idea is to combine the the compost bin to the hydro setup. hmm, …

Green onions 
I would love to grown green onions in a bucket bubbler for year round harvests, but have two questions. There are green onions that "multiply" and …

Lighting 
Hello Stella, I want to build the small lettuce raft for a starter project. I know I will want to eventually try tomatoes, squash, different variety …

Stunted seedlings 
Love your site and need your help! Having issue growing plants. Have been unsuccessfully able to grow lettuce, broccoli, and peppers indoors from seeds. …

GETTING STARTED ORGANIC HYDROPONIC OUTDOORS 
Hello I live in zone 9 or 10 South FL 33484 and want to start an outdoor organic hydroponic garden to grow lettuce, vegies, herbs, fruits, spices. …

pumps and timers 
I have a hydroponic tomato plant in a bucket with an air stone. Do I leave the air pump on all night? How long should the air pump run with plants? …

Hand Watering! 
Hello! I recently invested in several stacker pots to raise some veggies on my patio. I am looking to feed the plants by hand watering from the top. Each …

Hardwater & ppm 
Hi this is anthony from las vegas nev. i just started dwc 5 gallon system and its ppm is 636 but the ph is 5.6. it just got its true leaves is that to …

ec level 
i checked my ec levels in my tank today after it being in there for a week and it had gone up rather than down. can anyone please tell me why this has …

Vegetation Chamber Woes 
I have recently purchased a SuperCloset and I am a newbie at hydroponics. My supercloset contains a cloning chamber and a vegetation chamber. I seem to …

Minnesota to California NFT Lettuce  
Hey all! Mark from Junko's Garden in MN here. My wife and I have picked up and moved for the winter to Los Angeles. We have been growing approximately …

SNAP HYDROPONICS 
I want to ask if i can use coco coir or coco peat as a growing medium for the seedlings to start their roots? If that is possible. what is the procedure …

Can I grow chillies using hydroponics? 
I have started experimenting with hydroponics in an urban landscape. Being in an experimental stage I would like to start of cultivating chillies using …

Hydroponics Outdoor system  
Hello , I live in Cape Town, South Africa. I am a horticulturist and have 5 hothouse's with UV Defused Plastic Sheeting. All have misting irrigation systems …

Stella's Grow Juice 
Is your grow juice chart for ebb and flow systems, as well as the bubbler system. I think the GH chart has different amounts, depending on what system …

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Why won't vinegar work? 
Regarding your current issue on pH. Why is it that vinegar will not work in the long term? I have water with a PH of 7.4 and everybody is using nitric …

How Much Light 
Newbie here, how long do I keep the light on when starting seeds? Also, should I use a nutrient solution for them or just plain water. ------------------------------- …

Tomatoes dying... any ideas? 
I'm new to this and have a problem. The tomato plant (12") I have is healthy on top, but the lower limbs continue to die off from the end toward the stem. …

"Topping" a tomato plant 
Is it true that when a tomato is "topped", it produces more abundantly? If so, what is the most advantageous height? Also, in your site you state that …

A question on inputting air to the plant roots 
I have a 30 gallon resevoir with 4 five foot, 4" pvc pipes connected to it. These pipes contain my pots & growing medium, with a pump within the resevoir …

Cherry Tomatoes Won't Ripen 
We have a problem with Cherry Tomatoes. The tomatoes are big and doing very well but it has not ripened yet. What could possibly be the reason why it …

Sediment in tank? 
Thank you Stella/Simon for the advice on adding nutrients for my granddaughters science fair project, but have another concern. Should explain the dwc …

Hydroponic/cold frame? 
Well, the last two years I have been on a few missions trips to Northwest Mexico in the mountains of the Chihuahua State. The mission group is ministering …

Sure To Grow? 
I was wondering if you have tried the newest medium on the market. The Sure to Grow (STG). I have began using it and it is by far the best medium on the …

Where can you get an airstone? 
Where do I buy the airstone????? It is like driving a car with no windshield...There's just something missing! -------------------------------------------- …

Pythium 
I started using a UV light to kill this bacteria on my lettuce and had some good results, but a few weeks later my lettuce started turning yellow. does …

question about your DIY ebb and flow design 
Hi I am about to build this design you layout here: http://www.hydroponics-simplified.com/support-files/mini-ebb-and-flow-pdf.pdf However, I have a …

Newbie to this exciting hobbie 
Hi, please let me know if it is ok to re-hydrate my coco-peat with nutrients in the water, this is for the start of my seedlings while I build my system.....I …

Ph out of control 
I recently started with 3 hydroponic tanks and once a week I check water level, nutrient concentration and Ph. I found that ONE of the tanks is always …

How to Prevent Edema in Tomato Plants 
Hi, I've been battling significant leaf problems. The leaves get lighter green (to yellow) spots on the top and woody looking warts on the underside. …

Tip Burn on Buttercrunch lettuce 
I've got a lettuce raft that's been happily growing for the last month an a half. My romaine plants look good but having some browning on the tips of …

manual hydroponics 
For the person wanting to each others without electric about hydroponics manually, dont forget about the wick method where water is drawn up through a …

Nutrient Concentration Change Trigger 
Hi All, I am about 3 weeks into my first project and things are going well. Rather than going by "the box" and changing my nutrients once a week I would …

Thanks for a Wonderful Website 
Hi, Just wanted to thank you for a very informative website. I don't think I would have taken the plunge without it. One thing that could make it …

Feeding Schedule for Bud and Fruit Stage 
Hi, My cherry tomato plants have each produced 3 - 4 clusters of buds, so I've switched the nutrient formula to budding and fruiting. I've also reduced …

How Much Nutrients Should Plants Use? 
I started with 30 gallons of nutrient solution two weeks ago and have only used about 3 - 4 gallons in that time. I have four tomato plants. Two in …

Do I have to change nutrient solution? 
I'm new to the craft and need some guidance. I've read that you should freshen your nutrient solution almost weekly with full changes periodically. I only …

CFL vs HID 
I am new to Hydroponics and I am currently building a system that I can bring inside once it gets cold out. I need more advice on what type of lighting …

Different Maturity Plants on One Resevoir 
Hi, How do you deal with multiple plants at different stages of maturity feeding off one nutrient reserviour? I had trouble with my first batch of …

nitrated water 
I have set up an nft culture system to ad to my garden, I am running an Aquaponics system also, now my question is once the fish water has been through …

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Wilting after harvest 
I am really stuck. I have a 4x4 grow room with a 400watt argosun combination bulb HPS and MH together. Roots are white with lots of little hairs. Ppm …

Picolino cucumbers 
My cucumber plant is doing great but the cucumbers are only about 1" long after 2 months. Any suggestions as to what is wrong and why they won't mature. …

Followup - Leaf Wilting Problem 
Hi, A couple additional photos are attached. These are potato leaf tomatoes. They seam to curl along their long axis and always up. Some leaves …

Followup - Leave Wilting Problem 
Hi, This is a followup to my earlier post about wilting leaves. More of the leaves are not curling up along the length on both tomato plants. I …

Dropping Leaves on Tomatoes 
Hi, New to hydroponics and this is my first grow. I put this tomato plant in the grow chamber about three weeks ago. Its been growing nicely until …

Does Altitude Effect Tomato Production? 
Hi, Does altitude effect tomato production? My brother lives north of Durango at about 9,000 feet. He has tried and failed to grow tomatoes outside. …

PH: Conflicting Measurements 
Hi, I purchased the PH Up/Down from General Hydroponics. They have a very complicated graph on the back that not only covers PH, but nutrient concentrations. …

Grow Medium Effects PH` 
Hi, Just an observation. Just wondering if others have observed the same. Using 50/50 Coco Coir and Perlite mix. Mixed up 30 gallons of nutrients …

Tomatoes Help 
ok first I'm new to hydroponics!now I got 6 plants in a dutch bucket 12 gal reservoir using maxibloom 3 plants are budded 1 has blossoms ppm was1160 now …

Need Feeding Schedule for Tomatoes in Bato Buckets 
I've been following the instructions in this website. Going to grow tomatoes in Bato Buckets using primaryily a 50-50 mix of Coco and perlite. Plant …

Drooping Leaves On One of Eight Plants 
Fourth crop, five weeks into flowering, one plant is showing severe drooping of fan leaves. I don't believe I'm over watering. I'm using the same/strength …

2 sweetpotatoes are volunteering for hydroponics 
I have 2 sweet potatoes that each have shoots coming out like crazy, one that is 14" long. I would like to use these to grow sweet potatoes hydroponically …

hydroponic rice 
has anyone ever grown rice hydroponically? we are trying- we started our seeds directly in rockwool and that went well - added nutrients after the first …

top drip or ebb flow 
Hey, I live in South Florida zone 10a. I'm turning my west facing screen porch into the hydro grow space. There is no roof, just full screen enclosure. …

yellow lettuce and poor spindly growth 
I have an ebb and flow system, home built. Trays of clay pebbles with a syphon tube at one end. I pump nutrients into the tray once every three hours, …

Lighting for Tomatoes 
I've been using the bucket method for some plants that require lights on 18 hours/off 6 hours during the vegetative stage and then to a 12/12 for "fruiting". …

Patio in South Florida 
In the process of imagining a small NFT system (2 vertical "walls", maybe 8-10 channels altogether) for our outdoor patio here in South Florida, partly …

Watering frequency in Hydro 
Greetings all :) My system runs great but I can never decide on a watering pattern for the pumps. Some crops get watered 3 times a day some i do 2 times …

Adjusting PPM 
I am interested in trying to start my own hydroponics system and I have a question that may sound a bit silly. I noticed after researching that many …

Watermelons failing! 
I just started doing this. Have not had great success. I have been trying to grow watermelon. The plants start fine, grow to about 3-4" then the leaves …

Transition of seedlings to my hydro system 
I started seedlings in little peat pods and when they have their second and third set of leaves, I move the seedlings to my system where i have pvc 3 inch …

Why does the PH keep going up in my DWC buckets? 
I have 2-3.5 gal DWC buckets that I have started seedlings in with General Hydroponics nutrients, currently at 500ppm. The little plants appear healthy …

Muddy Waters 
When using a hydroponic system is it ok to have soil in my net pots? wouldnt that make my nutrient solution all muddy and change the PH? what growth medium …

White Mold on Hydroponic Clay Pellets in my Aquaponic System 
My whole set up is 2 weeks old with 6 goldfish and 3 hydroponic towers that feed off of the fish in a 50 gallon bucket. In 1 day I'm losing all my starter …

What light do I need? 
I've been successful growing lettuces under regular fluorescent grow lights, and another kind of plant with a hydroponic bubbler system under 600 watt …

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Wanting to design my own hydroponic system 
Hi there, I'm a product design student on my final year of my Bachelor degree. I'm very into self-sustainability and for my final project I would like …

General Purpose Nutrients 
I'm planning to put together a lettuce raft on the weekend and later progress to a drip system. However, after scouring the website I'm still a little …

when should my hydro system be on? 
I believe i may be feeding my 2 week old plant in veg stage. I am growing hydroponically and they looked great at first now they look burnt and crispy …

flooding duration 
how long should the flood tray be filled with water before the timer shuts off the pump and what should the water level be at for proper soaking of the …

unknown pest eating pepper and tomato leaves 
I live in Colorado Springs altitude is 7350 so I have my hydroponic system in a 3 season greenhouse. I purchased the plants from Lowes in dirt. Cleaned …

designer / consultant ? 
Hi, Could somebody please point me towards a technical consultant _ I am looking to putting up a large-ish tunnel that requires expertise beyond the scope …

Perlite 
Can I use perlite for sowing seeds. Also if the answer is yes do I stand the 2 inch pots in a small amount of water or will the pot become waterlogged. …

Berries, Berries, Berries? 
Does anyone out there have experience and/or information on hydroponic-ing berries? I've read the link on simplyhydro regarding strawberries, but what …

depth of rock wool cubes/green on rock wool 
My seedlings have been in my hydro system for a few weeks now and are doing very well. I noticed that some of the rock wool cubes are starting to turn …

brown leaves on some 
Stella, I am growing different things with my hydro system. It holds 15 pots and I have tomatoes, basil, cucumbers, strawberries and assorted flowers. …

Maintaining nutrient concentration 
Your FAQ section was very helpful getting my Aeroponic system started. My tomato seedlings are now moving on into the vegetative stage. I am however, confused …

Nutrient Solution Temperature 
Does the nutrient solution need to be kept at a certain temperature using the TOP DRIP SYSTEM (WITH BATO BUCKETS)? Is it ok for the tub of nutrients …

What next 
My first garden,seedlings came up were transplanted to my main system with my soultion mixed mild according to your chart all is well.When do I change …

ED's HYDROPONICS, PHILIPPINES hanging ornamental plants 
Click on each photo to enlarge. My experiments on hanging hydroponic ornamental plants using my FORMULATED GENERAL HYDROPONIC FERTILIZER are promising …

HELP WITH SEEDLINGS PLEASE!!! 
Click on each photo to enlarge So I'm writing my thesis at Rutgers University right now in Visual Arts. Long story short I'm commenting on the food …

My first Hydroponic system 
Hi. I am starting my first aeroponic system I almost have everything needed for this project, it's going to be an indoor garden, but I am a little bit …

nutrients from the start day 1 
i purchased a bubblephonics system last year and due to moving i didnt get a chance to use it now that im here to stay my question is i have a 4 pot system …

Using Green Fertilizer for Hydroponics 
The company I'm working for is now working hard to develop a design project of a highly-efficient heating system for a big greenhouse complex. We now …

Hydroponic ornamentals 
Click on each photo to enlarge. Ornamental crops can be grown successfully with Ed's Hydroponic Technique. I formulated the hydroponic nutrient …

Growing Spinach in the Lettuce Raft 
Hi, I'm a high school student trying to start hydroponics at our school. We like the lettuce raft design because its so simple and straight forward. …

Aeroponic Plants are Dying 
Hello! This is my first attempt at gardening. I built an Aeroponic planter from a 26 gallon tan storage container. I put two cherry tomatoes in front and …

What is the best fertilizer for big blooms? 
Got my first grow going and need to know a good liquid fertilizer for the blooming stage. -------------------------------- Answer from Stella/Simon: …

Nutrient Solution Schedule 
Hi, I am new in hydroponics. Do we have to feed nutrient solution to our hydroponic system on daily basis or weekly basis or nutrients are fed only …

Anyone here comparing different nutrients in identical hydro systems? 
Anyone here comparing different nutrients in identical hydro systems? Trying to get a real handle on which nutrient(s) actually produce the best results …

Absorbing info, getting started . . . 
I've been intrigued with the concept of hydroponics for some time, but am definitely launching into this now. A friend suggested I go to the Maximum …

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Greenhouse project 
My college Greenhouse class calls for a project. I have chosen to do a comparison growing of Climbing Nasturtions in Dutch Pots and standard pots. First …

T5 Lamps good for lettuce? 
Noticed in a few comments that a T-5 setup would be good for lettuce. Is this true for all stages of growing? Will the T-5 also work for Kale/Spinach/Swiss …

Kelvin Temperature 
Hello, I recently bought a T5 lamp for your mini lettuce raft plan. Does it matter what T5 bulb you use? It came with 3000K T5 bulbs. I saw on a website …

Me and my plants 
Strawberries; I use the ebb & flow system. I'm interested in planting strawberries, how often should they be fed, the PH level and how to look after them …

Recommended Height for HID 400 
What is the recommended height above seedlings for the above listed lamp? Help? ------------------ Hi Howard, It is best to use (cool temp) fluorescent …

fungus 
I was transferring some plants in my hydro system and noticed some black on the roots. will willI beleive it is a fungus is there any way to treat this? …

Can I use sawdust? 
Thank you for the knowledge that you send to me, i would like to start simple hydroponic. Can I ask to you if the saw dust can be used as growing media? …

them lights are runnen hot 
Flouorescent T5 four bulb lights over small seedlings. the heat drys out the cells so fast,I mist in the morning and there dry when I get back from work. …

Humidity? 
Is the humidity damaging to the space the garden occupies? For instance would a wood floor be damaged (above) If i put the garden on the first floor? …

Proper watercress EC? 
Hi Stella, I'm growing some Arugula and my EC is 3.3, but I'm getting a yellowish tint to some of the leaves and the veins in the leaf is green. What …

Manual Ebb & Flow? 
ok. Here's my question--how do I set up an ebb and flow system that is manual? I want to teach villagers overseas how to set up a hydroponic garden--only …

Peroxide? 
I read where you said using hydrogen peroxide is good to get rid of algae. Does it have to be food grade? How much do I put in my tank per gallon? I …

Do I need a grow light? 
I live in Port St. Lucie Florida and plan to grow my Hydroponic garden outside in our screened in lanai. Do I need GRO LIGHTS. Enjoyed your Simon's Simple …

Science Fair Project 
My daughter is wanting to do her science fair project on hydroponics. We are building a soda bottle Hydroponic system, Will green beans grow well in …

Organic hydroponics? 
I have had a successful hydro garden for 5 years. I am now trying in some new trays organic hydro and like I see on your site it is challenging. I do …

A Big Thank You 
I have just joined your site and I too think it is wonderful!!!...You have a lot of info and the questions and answers you give to us are simple and to …

Easy Ebb and Flow with a humidity tray 
Hello, In looking through all the different products and set ups on this page and others... Is there anything wrong with using a humidity tray that has …

Peroxide in the nutrient? 
I was reading one of your replies last week and was really happy to read your tip on using hydrogen peroxide in your tank to reduce algae. I'm trying to …

Need advise where to start from  
Hi dear Friends , I am chef by profession, and i have a huge respect for farmers and farming. i would like to start my own Hydroponic farm in India. …

Quality vs. Quantity?? 
I am just about ready to start seeds for my new 6 pot dutch bucket system. Wondering if I could put two tomatoes and also two peppers in each pot? I …

Herbs!!!! 
A couple months back I wrote to you about starting my hydroponic herb and lettuce garden. I finally have basically everything needed to start my bato …

nutrient solution 
I've never tried my hand at hydro so excuse me for this question. I just want to know what and how do i make a nutrient solution for a lettuce raft or …

Tomato problem 
Hi Stella, I’ve written before, and again I have a problem. In my system I have grown bell peppers and broccoli and now 3 tomato plants. The latter were …

How Do I Get Started With My Own Hydroponic Garden? 
I am in the beginning stages of building my own veggie garden and would like to know the best way to use hydroponics. Someone who is an experienced hydroponic …

Small, very inexpensive way to get started? 
Hi, I'm being very frugal nowadays, and I have a vegetable garden outside in the summer, but I'd like to try hydroponics in the winter when it's well …

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What is the best nutrient solution? 
I'm just getting started with hydroponics and I'm using two different systems: One is a wicking system I "invented" myself and the other is an ebb and …

Gnats are driving us nuts! 
We are using an ebb and flow set up (all new components and materials) and seem to have established a home for a colony of black gnats! I am scared to …

General Lighting Question 
Hello, I was wondering if anyone has experience with LED lighting? I've been thinking of replacing my current lighting for the energy savings, but …

Bug Attack! 
Hello. I love my zucchini plants, but they seem to be attracting a lot of insects. I do not like using pesticides or chemicals of any kind. Is there a …

Greenhouse conversion 
I've got a raised bed greenhouse for winter vegetables and herbs. I'm thinking of beginning to experiment with a hydro setup. Are there any means of transitioning …

How to fix Hydroponic plants that drop leaves 
Hello, We have a hydroponic top fed garden that is doing well, except our pepper plants are dropping leaves. How can we prevent that from happening? …

Bubbler 
Simon, So will your bubbler work well with a variety of herbs? Can I use your combo set up half bubbler with herbs and half lettuce raft? Can both use …

Herbs 
I was wanting to know what system is best for herbs? I want to plant basil, mint, stevia, rosemary, dill, thyme, orgeano, cilantro. Should I use the ebb …

Help With Kohirabi 
I don’t know if anyone can answer this question, but I’ll ask anyway. I’m growing Kohirabi, and I was wondering about light and nutrition. Kohirabi does …

brown around the edges of the leaves...? 
Hi i have a 3by3by6 grow tent with a 400 w mh hortoluv bulb proper air flow with a aeroponics media. everything is growing well but i noticed today brown …

Growing broccoli and strawberries indoors 
Hi Stella, Things are going great here with some herbs, tomato, pepper, lettuce and cucumbers etc. I have enclosed several pics of my current indoor …

Problem: Plant roots submerged for extended period of time 
I use an ebb and flow bucket system for my plants. I woke up this morning and realized that yesterday I stupidly I forgot to plug in the pump that drains …

A big bato garden 
Can we expand your bato box system to hold 12 boxes rather than three....thank you -------------------------------------------------- Answer from …

Science Fair Project 
I am helping my 8 year old grandaughter in a science fair project. She wants to see which growing system produces larger and faster yields, soil vs hydroponics. …

Tomato droop 
my tomato plants start off great and just before flowering begins, leaves begin to droop and curl downwards like an arthritic hand, sometimes worse than …

Indeterminate Tomatoes 
I am looking for indeterminate type of tomato that will not get too tall. If this does not exist, can tomato plants be topped to keep them at an acceptable …

Root mold 
Some of my plants roots seem to be molding before they reach the water. I'm talking about the roots coming from the side of the net pots in particularly. …

Just What Is Needed! 
Just wanted to say that your site is exactly what is needed. You take a stand and say "This works". That's my approach at my job. The other info is 2 vague …

LEDS & CO2 
Hey man stumbled across your site while looking at the aquatek co2 regulator I just bought. I saw you had a section on lighting and since I have been using …

Removing unknown nutrient from hydrotron 
I am trying to clean a hydroponic growing medium called hydroton, (a clay pellet heated and expanded to created small air pockets). I THINK Hydroponic …

Lighting for Lettuce 
Stella, Can I use a regular floresent light for lettuce type veggies? Thanks, Earl -------------------------------------------------------- Answer …

Truncheon use and PPM 
I just bought a Bluelabs truncheon to test my nutrients. I have gone online and found all sorts of suggestions for a good ppm range for the stuff. Can …

Germination to transplant time? 
When you germinate seeds, how long should I leave them in the propagation trays before I move them to their permanent home. My name is Jeffrey, I just …

Vertical Garden? 
Hi, love your site, keep up the important and informative work. Could you please offer me advice on growing vertically or making a vertical system? I …

Timing Ebb & Flow System 
I just made an ebb and flow system from a design I saw a picture of. My question is, how often should I run the pump ( 2,3,4,5,etc times a day)? I am …

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All IN ONE GIANT EBOOK

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Watch the new Video of
our test experiment of
this Tent Kit!

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