Montipora losing color!!!

[JuicyFry]

Plz tell me what's going on and how I can fix it

 

[bobby.w.hodges]

My guess is lack of nitrates or lack of potassium. What are your parameters and what does your maintenance schedule look like?

 

[JuicyFry]

My guess is lack of nitrates or lack of potassium. What are your parameters and what does your maintenance schedule look like?

That my be it I have not did my weekly water change this week