Can they work on DIY systems? If so, should I go with that rather than a glass diffuser?
BTW: 20 gallon long tank (not set up)
P.S I still may be able to run co2 thorugh my canister filter still trying to figure that out
BTW: 20 gallon long tank (not set up)
P.S I still may be able to run co2 thorugh my canister filter still trying to figure that out