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 have mastered the cloning chamber but after moving my beautiful tomato plants to the vegetation chamber problems arise. In the vegetation chamber I adjust the ph levels but 1-2 days later the ph has become too high. I readjust the levels but is it normal for the ph to change so quickly and without adding anything?
Also, the leaves of my young tomato plants start yellowing and browning. The roots contain either a grayish sediment or mold that wipes off easily. The temperature in the vegetation chamber is approx 72 degrees F. I change the water weekly but these problems persist. I am afraid to move my fresh batch of tomato plants from the cloning chamber to the vegetation chamber without some kind of advice. Anything that I can try to fix this problem would be helpful.
Answer from Stella/Simon:
There's a lot of variables that could be causing the pH problem, and I really have no suggestion to fix that. Just try to stay on top of the pH and adjust as needed.
As far as the yellowing and grey on the roots, these symptoms point to lack of circulation of fresh air. What kind of exhaust system do you have? Mold/fungus tend to take hold when there's too much humidity; when fresh air is not drawn in on a regular basis. Are you leaving the fan on at night when the lights are out? If not, you should try this.
You might also find more information on this page:
Common Plant Diseases
Hope this helps!
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