Also, just as far as other creatures in the tank, Scootaloo never attacks the hermit crabs to my knowledge, and he doesn't seem to bother the chromis, which are the only fish smaller than he is (that's the three striped damsel's job. Speaking of which, that damsel and Scootaloo have had some aggressive moments, once with them spiralling around each other). There are a few anemones. Scootaloo accidentally ran mouth first into one of the tentacles and seemed pretty taken aback by it (not enough to not pull the poo out of another one, though. Will contact with the tentacles hurt him?