Live rock turning orange?

[Greenturtle]

I haven't added anything to the tank besides ammonia for the cycling and some of my purple live rock is turning orange. It doesn't look like orange algea is taking over, it looks as if the rock is actually turning orange. It had coralline algea on it I think.

 

[carey]

When i dosed my tank using ammonia I bleached out my pruple coralline algae. It eventually grew back though.

 

[Greenturtle]

Good I was a little scared

 

[Bige]

Coralline can be many colors. Orange is one of them.

 

[Greenturtle]

I didn't know that. I thought it was uniformally purple. Thanks