What is this?

[rob safron]

i am post 48 hours for Chemi-Clean and did get rid of some patch’s of cyno. I still have this deep purple/red stuff on some rocks and spots on the back glass. It is not particularly hairy but not completely flat either. No bubbles on it. Could this just be a type of choreline alge or something else??

 

[KJ]

Did you have a better picture?

 

[rob safron]

It’s pretty tough with a cell phone. Tried a couple light settings.