Today I walked by my tank and looked in just as I always do when passing and I saw something climbing on the glass. As I looked closely it appeared to be a small starfish. It is about the size of a dime and has 7 legs. It crawled on the glass just like a starfish but I don't know where it would have come from. I have one sand sifting starfish in my tank but it rarely climbs on the glass. I tried taking a picture so that someone can help me identify this little guy. I know the pictures are very poor quality but it is the best I could get. Anyone have any ideas?