Open brain question

[Angler02]

I have had my open brain for 4 months or so and its losing some of its red coloring. It is red and green the red is turning like a dark purple. Is there reason for this? All water param are good my calcium was a bit low but Im slowly bringing it up, nitrates are 10 ppm.

 

[Reefs Creation]

probably light issue

 

[Angler02]

Not enough or too much?

 

[Anthrax15]

May want to reduce Nitrates but this is normal for coral including LPS. I've had similar situations happen with Lobos.

 

[N+D frags]

what kind of light do you have over it?