I recently purchased two pac-man catfish, Lophiosilurus alexandri, which is a very cool ambush predator from Brazil. They look like an Asian chaca catfish, but grow quite a bit larger. And they will eat anything that will fit in their mouth. When I got them they were quite thin, so I have been really trying to push the food into them. Unfortunately, all they are eating right now are live fish. I have tried Repashy gel food and dead fish, but they will not take them. They also seem unable/willing to catch the feeder fish I have in the tank with them. They will eventually figure it out. Once they are in better condition, I will feel more comfortable fasting them long enough to get them on to a non-live food. I do not like feeding live fish, but sometimes it is the solution that is needed. So I apologize to anyone who is squeamish… the video shows the pac-man catfish eating.