I have noticed over the last few weeks that the skeleton of my Hammer is gradually turning white. The polyps look great but the base is turning. Not sure if this is normal or not. When i received it, the base was brown and pink. Now the pink has mostly turned white. Its placement is about the top of the bottom 1/3 of the tank. All parameters look ok to me. Any ideas? Thanks
Ammonia - 0
Nitrite - 0
Nitrate 3.7
Phos - .06
Calc - 441
Alk - 8.8 dkh
Mag - 1250
Salinity - 1.024
PH - 8.4
Temp - 77
Ammonia - 0
Nitrite - 0
Nitrate 3.7
Phos - .06
Calc - 441
Alk - 8.8 dkh
Mag - 1250
Salinity - 1.024
PH - 8.4
Temp - 77