Orange Circle Algae ???

I have these orange circles of what I think is algae growing on my over flow and slowing spreading to some rocks for the past few months.

Does anyone know what it is ?

 

Are u using LEDs or t5's? Try looking at it with an incandescent flashlight. Could be a red macro algae.

 

T5's, what would the flashlight do ?

 

let you see it in a different light spectrum

 

Looks like a plating type of coralline. Is it hard or soft?

 

Could be Lobophora. See below.

ReefCleaners.org | Clean Up Crews and Macro Algae - Nuisance Algae ID Guide

 

Never heard of plating coral, it seems stiff and actually has lifted away from the surface its attached too in some cases.

 

Plating coralline algae

 

That looks very cool. I'm not sure n an ID though.

I want some, please.

 

That's what it looks like to me as well; I've seen it before.