STOP! If you have just arrived at this website looking for raft culture hydroponics, you might want to go back to page one of this mini-farm plan.
NOW, carry on building this baby!
6. Next, spray paint
the outside only of the clear reservoir bin, to make it light proof. Spray several coats and use the entire can. Do not spray the inside of the bin.
This light-proofs the system and prevents algae from growing.
Just about ready to load this baby up!
7. Set up the tray on a sturdy level support, (it's final resting place). Fill with 6 gallons of water. Place the airstone in the bottom of the tray, connect to the air pump, and plug it in to test it.
8. Next, add your favorite nutrient solution to the vat. If you are using GH Flora Series (recommended), add 6 tsp. each of the Flora Grow, Flora Micro & Flora Bloom, (one at a time, in that order). Adjust the pH with a test kit (more on this and ordering info in the Tips 'N Techniques section below).
9. Next, float the styrofoam raft on top of the nutrient solution. You want it to ride at the very top, so add more solution if your bin requires more than the 6 gallons.
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