Sounds like it is time for a tank transfer and dip the hell out of everything to get rid of the little ba$t@rd$.

What should I dip them in molten lava?

I would think a FW dip will release them for the zoas.......

Problem is I hear that will not get rid of the eggs so they just come back in about 3 weeks. I think the wrasse is the only long term solution but until they are in the bigger tank I cant keep one.

If you want to and can catch the dotty you can toss it in my office tank until you get the big tank going.

Thanks for the offer but there is no way I could catch it.

How hard where these to find? I've got one zoa colony that just won't open any more, the one directly beside it is fine, and the same type of zoa's on the other side of the tank are open and happy. Both have about the same flow/light, so it just doesn't make sense to me.

Well its easier after dark however if you look closely you can see nudis around 1-3 mm in length on top of the zoa. They take on the same color as the zoa so its hard but if you look closely you can see there is a problem. Will try to get a picture tonight.

Lugol's iodine in a solution with tank water should kill em. Worked for me. The eggs may not all die off so you have to keep an eye out. Try to qt the zoas in a container and look for eggs. Do a quick google search for nudi zoa eggs if you need a reference pic. Dip then remove manually. Rinse and repeat.

API Melefix works to, but doesn't work on the eggs. But it is easy to find the egg rings, and remove with a scalpel. Then you are right the wrasses are your long term solution.