I recently got lily pipes and I wasn’t liking the surface skimmer too much because it was sucking too much air into the filter, so yesterday I took off the surface skimmer and just let it be. Today I was changing the filter floss in my canister and when I opened the filter I found all these fish dead plus some more that aren’t doing too well( they are in a fish net ok the surface of my tank). I feel like it’s all my fault they died and I feel horrible.