soooooooooo wtf is this? and why does it creep me out

[ScubaSteve]

That'd be a mini brittle star and it creeps you because you need to leather up, buttercup. Just kidding, there's a lot in my tank that creeps me out too. The mini brittle stars are super cool and harmless detritus eaters. If you can corner one you can pick it up and check it out. Neat little guys. I literally just had one in my hand a moment ago.