I have a few discus of size 3 to 4 inches. Recently I have only been feeding them with pellets like Tetrabits for discus. Do I also need to feed them with live food like bloodworm or maybe frozen bloodworm?
If you feel troublesome to feed them live food, then you can just feed them with tetrabits if they eat. But if you think to breed them for fun, I suggest you feed them live food.
Frozen food like bloodworm is very handy. You can get them in aquarium shop.