So I've got an Aqueon Power Filter 20 (rated for 125 gph) on my 10 gallon. While the tank was cycling, I had a snail in the tank which got sucked into the intake. I ordered some sponge online, and while I was waiting for it, I used a cut up loofah in there. The sponge was working well. Last night my Dad decided it was getting dirty and took it out and wanted to change it in the morning. I woke up this morning to find my Honey Gourami and one of my Albino Cories sitting in my filter, dead.