coralline??

[cryotek74]

Is this coralline? if not coralline then what is it? Tank has been running since 11-2015. I think its coralline as it started after i put the CUC in and those crabs had pink coralline growing on them.

The neon green leather is new last week.

Thanks in advance for the help.

 

[cloak]

That looks more like Cyanobacteria than Coralline algae to me. Does it come off the rocks easily?

http://www.reefcleaners.org/nuisance-algae-id-guide

 

[Tom Blevins]

+1

 

[cryotek74]

Hmm. I guess I need to get a phosphate test kit.