I have 2 125 gallon tanks and a couple weeks back I dumped in some convict fry thinking they would all get eaten. Nope. There is still a good amount in there. My red texas, senegalus, synodontis cats and hoplo cat ignore them all now. I'm looking for a cat that can wipe these guys out. I was looking at sun cats. I've read that they like to eat live food. Or maybe a 4 line pim cat? Lima shovelnose? I'm looking for something that's not too hard to find.