Zoas receding or melting?

sorry to hear that you lost your zoas. and granted i may be a day late and a dollar short but have you checked for stray voltage in your tank? all corals will respond differently to negative triggers even between colonies of zoas. you said this all started when you started using your skimmer.

No stray voltage.

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Originally Posted by MizTanks

No stray voltage.

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Awwww, I'm sorry about your loss. I lost all my Zoas and Palys except for a few of the green button polyps that you can't seem to get rid of when I had to have shoulder repair surgery. Then during recovery and PT for that I was diagnosed with Breast Cancer and have been undergoing treatment for that. During that time, I went 2 full months without being able to touch the tank. My daugther came from NC to help out and tried to help me. She knows absolutely nothing about tanks. My sump is in the basement in my fishroom where all my water changes and mixing is done. I couldn't walk down stairs at that point. Evidently she got the salinity way too low and I lost all my snails and corals. There was a beautiful neon candy cane hanging on the edge of death and a baby blue one almost dead as well. The Neon is coming back around slowly. I don't believe the blue will make it but I am still trying.
Even my mushrooms and yellow polyps disappeared!
All I can say is don't give up. Start over and enjoy what you have. It is sad though and I understand.
I had some gorgeous orange bam bams and pink palys that just glowed under the lights. Lost my nuclear greens and one called dragon eyes? There was a purple colony I can't remember the name of now.

Good luck! Live and learn. Hang in there.

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Awh I am sorry to hear all of that.
As for me I've had no stray voltage either. That came up in the discussion.
Then someone said the vermith snails. I couldn't find any. Then someone said spagetti worms. I do have those but we didn't think they would disturb zoas too much. Enough to kill them
Once again sorry about all your losses. I mysel have been leaning towards sps lately so I think I'll be getting rid of my dirtier water needers.
Best of luck

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Originally Posted by jstan

I had those hydroid things, I literally scraped then off the rock with an exacto knife( out side of the tank, then rinsed in a separate bucket of tank water, then back to the tank), till I was scraping the top layers of rock off as well. That was a couple of years ago, and they never came back.

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Then you can start feeding again. Just keep up with water changes. And skimming.

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What are Hydroids?

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Originally Posted by binford4000

I think the fish list request was a good question honestly. One thing about zoa's and palley's there's lots of pest that can effect them like flatworms,spiders and mites. Serious ,really ,this is true. I would suggest you dip the effected colony in revive. Give it a good bath in a glass bowl and look for small spider looking bugs then rinse it in another bowl with freshly mixed water and use your Baster also then look again.Then see if they come back. Zoa's will receed to protect the colony then magically reappear when the threat leaves or starves off. If you see something that looks odd goto zoa.com and look it up and follow the advice given. I would not blame the skimmer. Your skimmer is more for the benefit of removing the waste from fish and adding oxygen to your water column. Zoa's and palley's do like slightly higher No3's (10-30 ppm) also as suggested by my nemesis . Adding lipids and rotifers would be good and zooplankton also but a bath would be my first reaction. Good luck ! :oldman:

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Mites?

Are you referring to Zoa Pox or is it something different?

I have heard of:

Zoa Pox
Zoa Nudibranchs
Zoa Spiders
Sundial Snails
Fungal Infections
Bacterial Infections

but Never Mites

What do they look like?