Co2 bubbles and diy reactor.(I think so)
I recently replaced my ista mix max large(trash by the way) because it leaks, is made out of cheap materials and didn't work so i went ahead and built my own reactor. is basically a 2" diameter pvc pipe, 24" long with bio balls inside powered by a sunsun hw-304b canister filter this in my 120 gallon tank that also has a fx5 canister.
The problem i am facing is that i am still seeing a lot of bubbles in the water, basically i think the co2 is not being broken down enough for the bio balls. any suggestions?