Thinking about buiding a diy co2 system for my tank. The idea I have is to use the normal 2 liter co2 system but put it in a 5 gallon bucket with a air pump inside.
the idea is that when the lights are on the airpump would run and add co2.
and when the lights were off the air pump would be off and no co2 added. But the co2 would build up in the bucket.
not sure if this would work anyone ever tried this??