GREAT info and there are some things that you can tweak.

When you run a CO2 boost, you should increase temperatures a bit. So instead of 68n/78d (standard), you can go up to about 75n/80-85d and the plants will simply transpire faster. NOTE!!! This only applies when you are running AMPLE CO2 from a REAL delivery system (not a yeast booster) and can measure the levels! Luckily you have numbers for that so phew. Correct me if I'm wrong, but isn't 1300 a bit high? I'm not real familiar with CO2 boosting so you might want to look for some info on optimal ppm/temp numbers.

Another thing I'm wondering about is your choice of ferts. The combination of fertilizers that aren't designed to work as a system can be troubling to many growers. Browning that begins in the center of the leaf often indicates potassium being locked out. Closeup pics would help nail that one down. You're running 6 different juices in the res and that is quite a cocktail. What about your water source? RO/tap? If RO, where's your CalMAg?

As for the venting, you are venting AND running CO2... you should read up on the concept of the sealed room. Search user 'tranoble' or the terms 'sealed room' for some really neat info on that.

How is the temperature of your res? Is the res up off a cold surface such as a concrete floor?

We'll get this sorted.
stinkyattic Reviewed by stinkyattic on . what you think- curled-under leaves so what do you experts out there think whats should i do trim it or just let them grow Rating: 5