So i'm going on vacation and i have a 20 long with 2 t5hos and paintball co2. What should I set the photoperiod at. I don't have a solenoid, so i'd have to leave the co2 on day and night. I'm planning to turn an airstone on whenever the light is off so I don't kill the fish. What should I set the co2 at. It's normally at like 2-3 bps for about 8 hours.
Thanks, I won't be able to adjust it, so I want to set it right.