I have to turn off the aquarium lights then hand feed mine, otherwise he never gets his share of food. Been thinking about picking up two more when I have the money.
Horabagrus school, so getting more will help the nervousness problem more than anything. They are nocturnal, of course, but they should start coming out whenever they smell food. Yours are small, but as you said, and I agree, you don't want to do live fish. You can try anything that sinks; frozen food, pellets, blackworms, they should eat whatever, I've never had a finicky sun cat.
