Zoanthids are closed up

[SeaCilla1212]

I have a rock covered in dragon green eyes and watermelons. They were doing great. But that last two days I noticed that they have been like really closed up tight and aren't opening at all. Any ideas on what could be wrong with them?

 

[Overlook reef]

What are your parameters? (Alk swing?)

Have you added any new corals or rocks? (Pests maybe?)

 

[SeaCilla1212]

Ph-8.3. Ammonia-0. Nitrite-0. Nitrate-10. Phos-0.25. Alk-11. Calcium-400. Salt-1.025. I'm just starting out so these r the best numbers my tank has ever seen. So I know it can't be my numbers

 

[Overlook reef]

What about any new additions?

 

[SeaCilla1212]

My bubble tip anenome but they were opened when I first put the bubble tip in. It's just been these last couple days

 

[Spaceman]

How old is the tank?

 

[SeaCilla1212]

About six months

 

[SeaCilla1212]

I put the zoanthids in about two weeks ago. They were open every day in my tank until like two days ago like I said.

 

[Moe_K]

Nitrates are high, but I doubt that's it.
How are you measuring salinity?

 

[wrassefan]

could be the affects from your high alk a couple of weeks ago...

 

[phg1960]

What sort of flow are these getting? They seem to love constant current. I had the same sort of thing happen when I first started a reef. Would put zoas in, they would look great for a week or two, then close up or just barely open. Figured I had some parameter they didn't like. Bought a few different types and had the same results. Was later told to hit them with a strong current. They all opened within a couple of days. Now I have too many. If that's possible...

 

[STiTCH87]

Any white specks on them? Either being nudibranchs or their eggs?
Also, do you by chance have asterina starfish? (The little white ones).
Some species of asterina have been known to eat zoanthids, though AFAIK no distinguishing visual characteristics have been discovered to confirm which ones do or don't.

EDIT: Just read WrasseFan's post as well.
Alk issues could indeed bother the zoanthids into closing, whether it be low ALK, high, or a general swing.

So in a nutshell, quite a few things could be the cause, rule out what you can first and go from there.

 

[SeaCilla1212]

Where in the tank should they be I got the basically all over this little rock and I put in on the sand bed close to a big rock

 

[STiTCH87]

Where should what be, the zoas?

Sent from my SAMSUNG-SGH-I747 using Tapatalk

 

[dannyp02908]

I put zoas at all levels of my tank and never really have an issue with them. It's weird they are all closed up. But I agree that it may have to do with the alk problem you had.

What kind of lighting do you have on the tank? What do you have for flow? These things will help people in the future in regards to placement suggestions.

You could add your tank specs to your signature if you wanted.

 

[frank180reef]

Flow