DIY CO2 running air pump at night?
So I just finished my DIY co2 system after reading forum after forum. But one said to run an air pump during the night to make up for the o2 the plants put off during the day. So am I suppose to do that or turn my powerhead off or anything?
Last edited by Drewsplantednutz; 10-25-2014 at 12:35 PM.