I'm going to be injecting co2 into my 55g soon and I have a penguin 350, and eheim 2217 running on it now. I like the filtration I get out of it but i know biowheels let a lot of co2 escape. I was wondering if it would be better to just remove the penguin completely or if I can just remove the biowheels and let the water run down the little slide. Would this stop most of the co2 escaping? The canister should have enough bacteria in it to handle the bioload. It's also semi heavily planted. Is there a way I can make a biowheel chamber or something with pvc that I can put inline so I don't lose that bacteria too?