psness
Reefing newb
I saw this on my tank glass a few weeks ago and thought it is a baby brittle starfish, although I've never had one in my tank and haven't added anything new in months. Then today I saw three at the same time. They are white and no more than 1/4 to 1/2 inch from tip to tip. Their movement sure looks like a brittle star. Any thoughts on what they are and how they got into the tank?