Live rock question

[saltwaterj]

I have a 55g CC 30lbs of live rock coralife compact 108w 50/50 3 chromis, 1 fox face, 1 clown that has been running for 10 months..... Now my question when i bought my live rock it was a brownish green color with a few purple spots on it. After the tank was set up and ready to go the spots began to grow. But now they are getting smaller again. When I put the put the rock in my aquarium it had regular florescent bulbs. I have just recently switched to the coralife. What can I do to get the color back into my live rock? Any help or ideas will be appreciated.

 

[deep_sea_denni]

it takes time. if you want good coralline groth you need clean water .. keep your calcium right and it will grow

 

[bang guy]

Can you list your Salinity, Alkalinity and Phosphate levels?

 

[saltwaterj]

Phos level is.5
Alk level is 7
Sal level is 1.023

 

[bang guy]

If you can get your Phosphate level below 0.1ppm you'll have a better chance of growing coralline.
7dKH is slightly low, not bad, but paired with Phosphate it would be difficult for calcification. If you can get it above 9dKH that will help as well.