Skin looks thin and grayish

[RedneckReefer68]

I have one frag that the skin looks really thin and grayish colored. It's supposed to be purple.

Mag 1340
Cal 420
Po4 0
Nitrate 2
Alk 7.5

Google didn't turn up anything for me. Anyone seen this before?

 

[Macdaddynick1]

Frag of what? Usually caused by 0 po4 or very low nitrates. But that applies to acroporas

 

[Tahoe61]

Please post an image, how long you have had the coral, and lighting?

 

[RedneckReefer68]

It is an acropora...RR ghostbuster