I had 3 catfish, but two have died within the last couple of weeks.. One of them ended up sideways, and the other one got stuck in the filter intake.. It was very sudden.. I see them swimming around all the time.. and it was kind of weird that they just suddenly died like that.. The only thing I can think of is that they aren't getting fed correctly.. I have 4 platys and 5 neon tetras in the tank also.. I use flakes to feed all of them..