Originally Posted by Storm
I run 2.5 bps on my 17 gallon, but it is on a timer and only runs when my lights are on. If you don't have a solenoid and run your Co2 24/7 you might try starting with 1 bps and see how it goes. Get a drop checker too, and some 4 dkh solution so you can tell how much you really need. A lot depends on how bright your lights are and how much your plants can use.
cool i'll try 1 BPS until i could get a checker.
BTW is it safe to run the c02 24/7 at 1 BPS?