i have this black sea urchin for few months now. he was doing just fine. i notice he slowed down a little bit in the last week and now it seems like his spikes are falling off. his "legs" and spikes are still moving but he doesn't look good at all. i think the word squashed will be good to describe him. i'm adding a picture so you can understand what i'm talking about. please help me save Saron (or put him out of his misery...).