zoas dying help!

[Alexander209]

sorry should have post on this thread instead of general sw discussion. My beautiful zoas is dying, it has been in declining mode for a while now, don't know what's killing them. It looks like they just won't open, close and then die.

http://s178.photobucket.com/albums/w254/saltwater84/?action=view&current=sickcoral.jpg

here what I have in my tank.
1 cowie tiger snail
1 yellow tang
2 percula clown (false)
1 clark clown
5 hermits crab

46 gals bf

 

[BurN]

The pictures alittle blurry but it looks like someone is feasting on it. Hard to tell though

 

[MUCHO REEF]

It's kind of hard to see what's going on. If you can, a little better pic, maybe a macro would help. Could you describe what it is you are seeing? Is that a bare patch? is it cottony, yellow etc.

Mucho Reef

 

[Alexander209]

It like a meltdown. The ployps close and it just never open again, it seems like there is some kind of slim on top of it Hey mucho reef, I read your thread about doing an iodine dip with lugol solution, last night I just perform it, hopefully it helps.


here is another pic


http://s60.photobucket.com/albums/h23/saltwater_84/?action=view&current=meltdown2-1.jpg


maybe this one is clearer.

 

[Alexander209]

This big rock use to be fully of zoas covering almost the entire rock, something is killing it. Do you guys think it's the cowie tiger snail?

 

[650-IS350]

Cowries when not fed as much feed on Sponges and tunicates doubt they would feed on zoos... you probly have some type of fungus, flatworm or nudibranch problems...

 

[Alexander209]

I really don't know what the heck is going on. Maybe you are right, some kind of fungus, I dipped in lugol's solution and only found two bristle worm are found dead on the bottom of the bucket. I found a dozen of curl white strings of maybe nudi egg or I don't know about an inch or less long on the back of the rock. It's everywhere, I will take a picture. I really hope that the lugol's solution will retrieve my zoo, right now, a bunch of them are not opening.

 

[650-IS350]

Go to CLUBZOA, you might find pics of nudi eggs for identification.. I think I rather have nudi problem than fungus/zoa pox issues... the fungus/pox wipped out several plus colonies I had about $200-$300 worth of zoos

 

[IBASSFSH]

Low alkalinity can also make them close up, and eventually die.