Recently found 4 on the rockwork and glass at my usual 2:00 am check in. I guess if I've seen 4 or 5, there are many more. They look kind of like Nassarius. They are all on the small side. He's photographed on a paper towel so you can get an idea of the size from the "weave" of the towel. Sorry, I should have put a penny next to him but it was 2:00 am and I wasn't at the top of my game. He would definitely fit on a penny. Should I be concerned by these guys?