Zoas/plays losing skirts?

[Davy Jones]

Title says it all. Noticed a while ago that some of my zoas/plays don't look their best. Even while half of the colony is doing great. Anyone ever seen this before? Causes? Cause for concern?

Here are a few shots showing some that are doing great and others with no skirts.


Thanks!

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[Davy Jones]

Not sure why they posted sideways...

 

[Hemmdog]

Somethings nipping them. Do you have an angel or butterflyfish, anything like that?

 

[Davy Jones]

Somethings nipping them. Do you have an angel or butterflyfish, anything like that?

1 clown
1 starry blenny
1 purple Tang
1 orchid Dotty back
1 yellow Corris wrasse
1 Christmas wrasse
5 or so Scarlett hermit crabs

This is all I have for livestock. Haven't seen any of the fish picking at the zoa's, although my starry blenny does like to hide in the large 2 colonies from time to time as seen here

 

[PDR]

Have you run any fresh carbon recently?

 

[Davy Jones]

Have you run any fresh carbon recently?

I haven't run carbon in months . Seems like whenever I do my coral don't seem as healthy, tissue gets thin on most things, hammer coral don't extend as much.

I can try running it for a week or something to see if there is any change

 

[scott11106]

if you are running carbon through a reactor just lower the flow, i don't think that is the problem but i am not sure what the problem is but i would not make any major changes and watch for a week or so and see what happens, keep us posted on status

 

[PDR]

I haven't run carbon in months . Seems like whenever I do my coral don't seem as healthy, tissue gets thin on most things, hammer coral don't extend as much.

I can try running it for a week or something to see if there is any change

I would try it just to see. I had a zoa colony start to close up on me and look pretty terrible, added some carbon and it bounced back. It may have been a coincidence, but worth a try.

 

[Davy Jones]

if you are running carbon through a reactor just lower the flow, i don't think that is the problem but i am not sure what the problem is but i would not make any major changes and watch for a week or so and see what happens, keep us posted on status

I don't run it anymore. And when I did it was always passively in a media bag

 

[Chuk]

What are your nitrates? I had something similar happen when I overdosed NOPOX and my nitrates went to 0.

 

[Davy Jones]

What are your nitrates? I had something similar happen when I overdosed NOPOX and my nitrates went to 0.

Last test was 2 months ago and was around 12ppm.

 

[Poseidon03]

Last test was 2 months ago and was around 12ppm.

Welp, you should probably test again, lol

 

[Davy Jones]

Welp, you should probably test again, lol

It's on my list lol

 

[Davy Jones]

Update, zoas still look the same, but issue has not seemed to spread to others. Did 2 waterchanges since then, with no noticable change. Full test results below.

Alk 6.2dkh red Sea test kit
Alk 7.1 dkh Hanna checker
Cal 400ppm
Mag 1360ppm
N03 4-8ppm
P04 .07ppm
Salinity 34.6 ppt via Hanna salinity tester (love this thing)

 

[grisha]

Following

 

[Davy Jones]

Added pair of harlequin for the astrenia stars, and zoas have been fine ever since

 

[GrimReefer51]

Did you ever find out what it was?
I have the same thing.

 

[Davy Jones]

Did you ever find out what it was?
I have the same thing.

Astrena stars, bought a pair of harlequin shrimp and the issue solved itself if ya know what I mean lol

 

[vetteguy53081]

Astrena stars, bought a pair of harlequin shrimp and the issue solved itself if ya know what I mean lol

I had same experience with asterinas which ate a colony of my BamBam zoas