live rock question

[ampresearch]

hey there ya'll

i have about 65+ pounds of live rock in my 30 gallon sw tank
when i got it it was covered with tons of coraline
every shade you can imagine

but in the last few day i have notied that alot if not all of the light purple it turning white but all the dark reds and deep purples seem to be unchanged. is somthing wrong??

i have 100 watts of light. a mix of blue and white lights made my corallife
does anyone know why this happens and if so what can i do to stop it?

 

[Bang Guy]

Just let it be. You can't provide a single perfect environment for all the types of Coralline. Eventually the coralline that does well in your environment will take over.