So I was going about my day , moved a hammer coral down since it was getting too much light, and noticed a smudge on a skimmer that had previously been somewhere else in the morning, I was like :eek1: lol. Anyways, I looked closer and looked like Asterina starfish, I called the cops and the two suspects were arrested and taken into custody for questioning. :bum: Now, I think I got them as hitchhikers from some coral I recently bought, but I don't know how they got in my tank, I dip all my corals for 15 minutes. I'm sure there are more in my tank, I haven't seen any coral damage. Do you guys think these are good/bad? I will post some images in a second...