Help with my Zoa not all open!

[Jting1214]

Hi,
I’m new in the hobby, my tank is only 4 month. I got this charmander Zoa not long time ago, the first day it was all open, but after like 2 days, it’s not opening anymore Except 2-3 super small polyps are open. Don’t know what’s wrong with it, all my other Zoas and LPS are all great.
Armonía 0
Nitrite 0
Nitrate 15
Phosphate 0.06
PH 8.0
Temperature 78
Calcium 475
Alkalinity 9.2
Magnesium 1640
40g Breeder

Appreciate if anyone can give any advices.

thank you

 

[Mr. Mojo Rising]

if all others are fine, then I would blame it on light and flow. Zoa's come from all over the world, from all kind of different conditions, so happy placement for one zoa might not be so happy for another zoa.

 

[Jting1214]

if all others are fine, then I would blame it on light and flow. Zoa's come from all over the world, from all kind of different conditions, so happy placement for one zoa might not be so happy for another zoa.

Thank you for your reply!
i actually tried all different spots in my tank. Only one spot it opened 2 more polyps for 2 days then closed again.
the first a couple of days were all open, didn’t move anywhere, they just closed for no reason.

 

[Mr. Mojo Rising]

I dont have many zoa's so cant offer more advise, there are some zoa guru's here that can help.