I think something is eating my Blue/Yellow zoanthid. This and my Supercolored Orange Zoo's are my only zoo colonies that are slowly losing polyps. I tried looking around the tank but could not find any detached polyps. I tried looking for the Sun Dial snail but had no luck finding one. I could only find about 5 what I think are pyramid snails about 2.5mm long in white shells (I found these at night). I looked online and found that they eat Tridacna Clam's. I use to have a 2" Blue Maxima until my Orange Spotted Hermit crab decided he needed something new to eat and ripped the flesh out of the clam shell. I never saw these snails bother my Maxima clam but I have seen them attached to my Astrea snails. I know they're not baby Astrea snails because the shells look more like a cerith snail and I don't have any cerith snails in the tank. I'll try to get a picture up. It looks like the snail on the right. If this snail does eat Clam's wouldn't it starve since I no longer have a clam? My clam died in February (Almost 6 months ago).