I had a snowflake for years he (Sid) had a crooked jaw to. I feed him silverside by hand and he never messed with any fish. Feeding him live food could trigger his natural instincts I'm pretty sure these are breed in captivity and feed dead food.feeding him by hand will get him out more and they will even swim through your hand! Sid jump out of my tank one night we found him on the floor! He lost his slime and didn't eat for 6 weeks. All of a sudden he just went insane and ate like ten whole silversides. Hope this helps!