Zoas zoanthids closed

[Volpone]

Hello reefers ,
Iv notice that my zoas start to close ,
I do fresh water dip before with iodine but doesn't worj for some zoas and didn't open any more ,
Any idea how to treat close zoas ??

 

[glb]

I've dipped with Coral Rx before too. That will help remove unwanted critters too.

 

[Reefing Madness]

Moved to current location.

 

[joshporksandwich]

What are your water parameters?

 

[Volpone]

Ph:8,2
Kh: 7
Ammonia:00
Nitrite : 00
Nitrate 25
Phosphate 00
Calcium :500
Magnesium 1500

 

[Volpone]

And trying a lot to drop the nitrate I'm running now bio pellets reactor for 25 days and I have refugim
With cheato

 

[Volpone]

What the current location I know they need low to modernate light , I put them at middle to bottom of the tank , but still looking they are extend and asking for more light , my light MH