Hey Guys, Last year when I was doing a little remodeling in my display tank I found a strange creature under one of my shelf rocks. While I had the rock out of the water to move to my sump I lightly poked at the mystery creature and it had a hard shell. I put it in my sump and a couple days later when I was watching the sump I noticed that this little creature moved. I've attached a picture of it. In the picture he is sitting up (for lack of a better word) but when I move my hand ...