Aggressive daily ramp up on CO2 bad?
Tried search but didn't find anything obvious.
Will injecting co2 at a fast rate which changes my pH from ~7.6 in the morning to my target of 6.8 be bad for my tetras? It currently takes about 4 hours. I'd like to reduce it to 30-60 minutes. Bad idea?
I have a 36g medium planted tank with tetras. My CO2 solenoid is hooked up to same timer as the lights(98w T5). When the lights cut out, pH raises as expected. But in the morning it takes a good 4 hours to drop the pH back down to the target level. Since i'm using a controller (SMS122), can I just crank up the bubble rate so CO2 concentration raises quickly? I realize the pH will also drop quickly and I'm guessing that's bad for my tetras? The reason I ask this and not just get another timer is:
1. A faster bubble rate lets my reactor send out some tiny little co2 bubbles all around the tank which I've read is good. With slower bubble rates, I get complete diffusion with my aquamedic 1000 reactor.
2. Saves a little gas because I'm not wasting the co2 that gets outgassed in that 2 hour pre-light window. Not really a big deal since a 10lb refill is only $8.