Don't see why you stop the lights and then start again, would be better a continous period just a couple of hours shorter, also you don't mention how big the tank is.BINKSY1973 said:Thats very helpful to know, as i have a similar problem.
I have 2 39w t5 and 1 38w t8 lamp All on at 10am, off at 2pm, back on at 4pm off at 10pm.
Co2 comes on at 9am and goes off at 9pm. Drop checker a lime green colour.
Dosing James all in one too.
I think maybe i need too change my lighting schedule, any suggestions?