Came home from work and look at my tank and I noticed that one oft corals I think it's called tyree undetta had some whites stuff on it I went to blow it off with Baster and noticed it was 5 white nudies eaten away on it I guess Fromm last night to this afternoon that ate its all so I tossed it my question is do they eat anything else I'm worried about my zoa looks like they might have had a bite of them too everything else is fine never delt with these little guys before any advice is helpful thanks