I see starfish at the LFS all the time, and they are usually fused to the aquarium glass or a piece of LR. I was wondering: if I buy one of them, how do they get the starfish to let go without hurting it?
If the starfish doesn't react quickly to being touched. Pass it by and select another one. When I got mine, he wrapped a leg around the hand that was in the tank (looking for food and investigating). Or scurrying in the other direction shows an alert starfish.