i just madea DIY co2 injector. I was wondering is it a must to remove the co2 piping from the tank at night since i'm afraid of it suffocating my fish since the plants are producing oxygen. Thanks.
I thought they absorb CO2 and expel O2 during the day and at night they absorb O2 in while expelling CO2.
That is correct.Bunny13 said:I thought they absorb CO2 and expel O2 during the day and at night they absorb O2 in while expelling CO2.
joephys said:Technically, they age giving off CO2 and using O2 all the time. During the day they use more CO2 than they produce and give off more O2 then they use.