i put my hand in my tank with some tweesers to find out what this weird looking thing was, turns out, its a tiny hermit crab! in a shell! im totally stoked! not only that, but i left my hand in the tank, and my neon blenny came over and was swimming all over it and picking at it. if youve got a neon blenny youve probly seen them rest on stuff or lay on things, well, he did it to my hand! it was quite tickly. AND! hah, i wiggled my finger at my percula and he wiggled back at me! it was the coolest. hes so friendly ^_^