Today I added 1 sea star to my 120 gallon reef aquarium. He did not move for a few hours but looks in perfect condition. I went out for a couple of hours and when I came back I noticed he was now climbing up one of the rocks which I thought was a great sign. When I looked more closely it looks like something took a small bite out of the end of one of his legs. There's a dwarf angel and a couple of tangs. I'm guessing it was the angel. I don't know much about the sea stars, are they commonly picked on by angel fish? Do you small ones like this heal, or they're likely to be a lot more?