Can using C02 control algae

[Caliban07]

Yeah I get the best results overall when o2 is plentiful. Better growth and less algae. However it does seem that even with plants contributing o2, the rate of gas exchange at the surface is still important. I think many people try to reach a sufficient co2 concentration by trapping co2 in the water just to be conservative, when really it's probably a better practice to "waste" co2 by increasing surface agitation and also increasing co2 output to compensate.

Couldn’t agree more.