I have 3 Kuhlis in a 10 gal with some other fish. I see them scavenging for leftover food and they climb in my plants and appear to nibble on them. I feed them blood worms every couple of days as well. I always see one or the other eating, but I rarely see all of them eat the blood worms I put in before my tetras find them. Am I feeding them often enough? Should I be trying harder to make sure each of them finds the blood worms? (They are all relatively small, about 1 1/2 to 2 inches right now)