GSP skin color turning dark purple

[Qasim]

hello,

As my title states lately I have noticed my Green star Polyps skin cooor have started to change it has been doing really great and it was openning well and still do but. It has been a week i have noticed the skin color is changing as seen from the photo below. Please help me what should I do and what should I check.

I checked my nitrate is 10ppm i know it is high but it was much higher like 80ppm and it was doing well but lately it is not please help me what to do.

One of the photos contain another frag but the color of the skin is fine and light pink.

 

[madweazl]

It is typically a dark purple; if it wasn't before, be happy it is now.

 

[HB AL]

Dark purple skin is the norm.

 

[Qasim]

So this is normal i should not be worried

 

[Tahoe61]

Normal

 

[Qasim]

Thank you very much for the replies I was worried for a moment and thought something is wrong