Last night I was looking at the tank after lights out and I noticed three spiny looking legs coming from a hole in the rock. After watching for a bit I saw what appears to be a little brittle star climb out of the hole and into another hole. It's pretty tiny, legs only about a quarter of an inch long and the center only maybe a sixteenth of an inch or so. It's legs are striped dark brown and cream. I know that micro brittle stars are harmless and beneficial but I've also heard that the banded brittle stars can be a threat to small fish when they get big enough. I don't know what category this little fella falls under. Should I be worried?
