Is this coralline algae??

[Cjsanders757]

I have a pink purplish spot growing I know that's coralline. What about the green spots??

 

[ethridge78]

Yes it all is

 

[mike007]

Hard to tell but looks like it may be on the rocks. Make sure you are using rodi water and test for nitrates and phoshates. Avoid overfeeding and that will also help get rid of the green algae.

 

[mtnrunner]

Coralline it is - the pink on the glass.

 

[cparka23]

I have a pink purplish spot growing I know that's coralline. What about the green spots??

You're right about the pink purple spots. However, the green on your rocks is not coralline algae. It appears to be hair algae. That's where the advice Mike007 comes into play.

Perhaps the others didn't read your question after the thread title.

 

[d2mini]

Forget the coralline... looks like you have a lot of green hair algae. You need to get your nutrient levels under control. And get some livestock that likes to forage on algae.