Alright, I want to know everyones opinion on what I should place in my marineland 350 canister filters. I just ordered 2 of them today because I was going to use one as a water polisher and the other for actual filtration. For the filtration one I have no idea what I should put inside the sleeve or really how to set it up (First conster filter ever).
I'm open to any or all suggestions.
I'm open to any or all suggestions.