Zoa eating nudi are not black, they are beige or light brown.
Does it look like this? if so, they are sponge eaters and will not toutch the zoanthids:
There is another creature that look similar and does not have the white tip on the entennas but I can't rememnber the name, it's stuctus? or something like that and also does not eat the zoanthids.
Quote:
Originally Posted by reefwars
sounds like zoa eating nudis to me , they are not good and probably came in on a frag or coral.take out any you see and if its just a small zoa frag give it a freshwater dip but they are quite hard to get rid of  |