He's a model citizen with anything that's obviously too large to swallow. No aggression towards anything else. He will try to steal food from the other eels, but they attempt the same with him. I always tong-feed, and feed heavily before doing any tank maintenance where my fingers need to be in the tank. Extremely high prey drive. At 20" he consumed multiple 6" wrasses, and tried unsuccessfully to consume at 4" clarkii clown (which passed from the injuries). Leaves taller bodied 6"+ fish alone, so did fine with tangs, large angels, puffers, triggers, squirrels, etc.
Currently 24", living with the 24" white eye, the 32" zebra, a 6" picasso trigger, and an 8" panther grouper. I tong feed each eel 2x weekly, and they eat until they refuse food.