Hardimanm that is what I want to know! It is a 16 gallon with just two ocellaris, a yellow watchman goby, an emerald crab, two peppermint shrimp, a couple small hermit crabs, and the usual CUC snails. My money would be on the emerald crab but I haven't seen him in a while and I don't see how he could eat that much caulerpa. I've recently cut down on my feedings and light cycle so there is a chance I starved it out but the other algae in the tank doesn't seem to be starving yet. I wish whatever got it would take care of my turf algae too!