About a week ago I came home from work and sat in front of my tank for a few minutes just checking out all the cool things that go on in a reef tank when I look up in the top corner and there sits one of my margarita snails. On the outside of the glass! I was kinda puzzled and wondered why it got on the outside and if it knew how to get back in once it did. I figured I'd help him out and plucked him off the glass and placed him back inside the tank. A minute or so later off he went munchin away so I figured no damage was done. Yesterday, I am checkin out my tank again and what do I see but a snail (not sure if it was the same one) out of the tank! This time though he was on the outside of my PC light housing, so I guess he climed out and decided to scoot up the legs on my lights. Pulled this one off and again, no harm. It's kinda funny to me, but I don't want to miss one of these guys crawlin out one day on the back side of my tank or something then dyin and stinkin up my room. And here I thought I would have more trouble with my sixline wanting to carpet surf, guess its the snails that want out.