Looking for suggestions. Ive had a couple snowflakes. The old one and one i currently have started eating day after introduction to tank. Got a zebra eel probably a week and a half ago. Ive tried krill, silversides. He hangs out under a rock and sticks his head out 24/7. When i try to feed himx he moves away from the food. Is it typical of these eels to go on a feeding strike when introduced to new tank?