Here is a big question i know alot of you have ask but which is better? SUMP or CANISTER FILTER? im running canister but im having sec thoughts lol but what are the negatives and positive of both and which would you chose?
I've never had a problem with O2 levels in a canister driven tank. But I do prefer sumps on larger setups.I think the major advantage to a sump is the massive amount of air/water surface area providing a huge gas exchange potential. A canister provides practically no gas exchange.