Found one of these in the feather caulerpae in my refugium (Ecosystem Sump 3616) about 1 month ago. Now as you can sea I have hundreds and not as much feather caulerpae. Fortunately, I keep a separate tank of feather caulerpae and these snail things don't seem to like the grape caulerpae also growing in my refugium. Now all I need is a predator so I can quit picking them out of the caulerpae. Neat looking does not = beneficial.
