LIVE ROCK LOSING COLOR

[Joshua Agostoni]

So I have these beautiful live rock that's purple and magenta but i feel as if they are starting to bleach a bit and turn white.

What could be the cause of this?
How do I reverse and stop this problem?

 

[Best Fish-Jake]

Stable parameters. The purple colors you see is actually coraline algae. Make sure your alk is between 6-10 dkh and your calcium is between 400-480 ppm

Keep in mind that even if you lose all color on your rock, it's still live rock. The "live" part refers to beneficial bacteria that live inside of the rock

 

[Joshua Agostoni]

Yeah but the colors are awesome...