Hollywood stunner turning white!

I started a thread a few days ago and it didn't seem to really get many responses. I will post the link below for the thread. My Hollywood stunner is turning white and I'm not sure why. Everything else is doing well.



4 x 54w T5s (6 month old bulbs)

79.5 degrees

Salinity: 1.023

Phosphates: 1 (down from 2 five days ago)

pH: 8 (battling keeping it up to 8.3)

Nitrate: 0

Calcium: 440

Alk: 11dkh



Tank is 2 years old.



http://ift.tt/1unMHbF