Originally Posted by Dmaaaaax

Great pictures! That's a lot of CO2 you got going in there by the look of all that pearling.

I assume your CO2 is off at night, so can you tell us what your pH is first thing in the morning vs last thing at night before lights out when it should be at it's lowest? Also have you tested the pH of the water with no CO2 (ie collect some and shake it/let it sit) then test.

What are you current paramaters as far as kH, GH, and are you fertilizing similar to Tom Barr? Dry ferts followed by weekly 50% change? What kind of lighting are you using and what is your wpg and hours?