Nudis

[shereth]

So I have 6 different zoa frags throughout the bottom of my tank, and two of them (neighboring frags) had been increasingly closed up. A move to a slightly shadier spot seemed to make one of them open up more for a couple days and then they shut up tight once more. My wife insisted they were dead and wanted to toss them but I decided to try a freshwater dip.

Sure enough, blasted little nudis come off. One had quite a few, the other not so many. I realize that the eggs will survive this treatment and I'll have to dip the zoas again to ensure the problem is taken care of, but I have another question. The rest of the zoas in the tank do not look disturbed but I am wondering if I should treat them as a precautionary measure anyway?

 

[puter]

Really a judgement call on your part. If you've only had the infested colonies for a matter of days and there's a decent amount of separation between the colonies then it's likely the nudies haven't spread to the others yet. You'll just need to be vigilant about watching them for awhile.

That said, if the other colonies are easy to get to, a short Iodine dip on all of them may be worth the peace of mind.

 

[dalston]

The dip won't do much to the eggs, you will need to manually scrape those off. I would also advise on getting a nudi eating wrasse for some natural eradication. A 6-line, yellow coris, or possum work best IME.

 

[SnapDragon]

If you are going to start collecting a lot of zoas, I would agree with dalston on the yellow coris wrasse! They do a great job and are a good looking fish.

 

[flyyyguy]

if the colonies are easily removed manual removal of all eggs and nudis is a far better and more effective thing to do than just dipping them. offing the eggs now before they hatch is key to preventing a long battle with them

get yourself a bowl big enough to keep the coral underwater for the most part to reduce stress, and take your time, however long it takes and leave no parts uninspected. repeat the process every few days and just keep on the lookout in case you had any strays go to other colonies

 

[Lytehouse]

if the colonies are easily removed manual removal of all eggs and nudis is a far better and more effective thing to do than just dipping them. offing the eggs now before they hatch is key to preventing a long battle with them

get yourself a bowl big enough to keep the coral underwater for the most part to reduce stress, and take your time, however long it takes and leave no parts uninspected. repeat the process every few days and just keep on the lookout in case you had any strays go to other colonies

+1 here and on the wrasse

good luck, nudis suck