I agree. Especially if it's the same kind of fish. They really watch the behavior of their tank mates.Not only with bichirs, I think with a lot of fish, the monkey see monkey do is the best way to pellet train a "new" fish. It really helps if you have a ravenous fish go really quickly at the food offered. I've noticed the other fish see that this one guy is a hog, and quickly learn to go after the food or starve.