It is a about the size of a quarter maybe a little larger....Its the first time it has been on the glass so I am hoping someone can tell me if its good or bad before I lose it in the rock again.....Thank you!!!!
Some get fairly large and are also called cushion stars. These are carnivores and may in fact chomp on some coral. Don't know which type you have there. Maybe you can pm ophiura and point this thread out.
