Idk whats going on in my fish tank. My oscar and my wolf fish both lost their appetite for live feeders. I'm kind of relieved for the oscar for which i know feeders are bad for him, but gold fishes were the wolf fish's main diet. So I've noticed the wolf fish hadn't eaten anyhting for a week(3 gold fish still alive and swimming around) so I put in a small chopped pieces of serloin and he munched it. Was this a mistake?