Seasons greetings montipora needs help

[Jridgel47]

Hello my seasongrettings montipor that fused with my setosa is now losing color i think I've included a pic for help ....I had it up top in flow and good light idk whats up all tank parameters check out fine ....anyone experience this ...I've moved it down lower for now this pic was taken with all lights on

 

[vetteguy53081]

Moderate light and water flow and best location is mid to upper part of tank

temp 76-80
Salinity 1.025
Ph 8.1-8.3
Nitrate < .04
Pho’s < .05
Alk 8-9
Mag 1300
CA. 440

 

[Jridgel47]

Moderate light and water flow and best location is mid to upper part of tank

temp 76-80
Salinity 1.025
Ph 8.1-8.3
Nitrate < .04
Pho’s < .05
Alk 8-9
Mag 1300
CA. 440

Ok that might be it then I had to high. Up i think I moved down we will see

 

[PghReef]

Check mag levels. I've read and experienced Montis struggle when mag levels are low and actually grow and do better when mag levels are artificially high.