I have a few things in my tank that I have not purchased. I really dont know where they came from. For some reason I have a snail factory. I have only bought Turban, cerith,one margarita, bumble bee and nassarius snails for my tank. My margarita died in my tank swap but now i have tons of baby margaritas as well as lots of stomatellas. Now I see another type, but dont know what kind it is or if its safe or not. I have never seen this type of shell or behavior. Its just sitting under a frag of monti cap and doesnt move at all. I dont know if its eating it or what! I also have a fleshy purple coral with green eyes growing on my rock. I dont have anything in my tank that resembles it. So if you guys and gals will take a look and let me know if you recognize any of them that would be great. Thanks in advance.