The senegal would grab a piece meant for the bigger fish like the silver dollars that like to swim and nibble, and then the senegal would swim for a bit with it in his mouth, stop, let the piece go, chew some small bites out of it, pick it up again, swim some more. He did this for 3 pieces, it was quite comical.
The clarias would grab a piece and shake it to break off smaller pieces, I wasn't able to get any shots of that but here's its stomach after feeding