Zoas not opening all the way. Zoa pox?

[wahooper1]

I've had this colony for about 4 months. Started out doing great. The last couple of weeks I noticed it's not opening fully. Any ideas?

 

[wahooper1]

Anybody? Nitrate 5ish cal 390 I haven't had a chance to test anything else. All other coral are doing great.

 

[Jakedanijacob]

I had the same issue was because was not getting enough light don’t know if this could be the same for you mine is starting to open up more now I moved it more into the middle but now my toadstool is readjusting there’s always something

 

[wahooper1]

Mine has been in the middle on the sand since day one. Thought about moving it up but was unsure since it did so well for so long.

 

[Jakedanijacob]

Mine has been in the middle on the sand since day one. Thought about moving it up but was unsure since it did so well for so long.

Think most people have them higher in the tank I like mine on bottom as my nems end up on them (don’t know if that will help in picture )

 

[Tahoe61]

Have you checked at night for pests like Asternia, Nudi, Snails? I would lift the piece up and inspect it and give it a good swish with dip in a separate container.

 

[fishface NJ]

Ca is a little low. What is your Kh and salinity?
It's hard to see the photo. Do you see white dots on your zoas for it to have zoa pox? Zoa don't need bright light. I have them low in the tank