Coralline Algae

[dreeves]

Strange...my coralline is bleaching on some of the rocks...but yet growing on other parts of the tank..i.e..PVC, powerheads, etc.
Any ideas?

 

[timsedwards]

have you changed the lights or the lighting sequence?
Bleaching is normally when it is obtaining too much light or is too close to the light in my understanding.
Tim.

 

[dreeves]

Thanks for the reply...but that isnt the problem.