red, non stringy, tough to remove algae

[jacksin]

what is this and how do I get rid off it? Its growing on rock and walls over the top of coraline. It does not blow off when using a powerhead.
I add neophos and nitrate 2-3 times a week to maintain phos .02-.04 and nitrate around 5. Don't want to stop these additions as I don't want these parameters to bottom out
thanks

 

[Tired]

Are you sure it isn't just that the coraline is turning red for some reason? Is it present anywhere other than on the coraline?

 

[Greg P]

For me the pic is a bit blurry. It kinda looks like red coralline algae.
Some hard algaes will plate after getting a footing.
Maybe you'll find what you have here

ReefSlides - September '06 - Algae Album: An Algae ID Slideshow

 

[jacksin]

It’s starting to choke off a green stylo coral. It started growing from the base up. The base of the coral was bare skeleton, so it started to grow there

 

[CMMorgan]

Gotta +1 on @Greg P here, feels like a plating algae to me

 

[Greg P]

Have you tried to scrub it with a stiff brush? Not a toothbrush but rather something wire ... preferably stainless.
What does a brush do to it?

 

[jacksin]

Haven’t tried brushing it

 

[jacksin]

Sorry for the delay in response. Sleep and work always get in the way of the important work to be done.
Seems to brush off with a toothbrush. Kinda hard to see in the pic. This is the coral that is being chocked off from the bottom up.

 

[Greg P]

Hard to see what's going on as your pics are still blurry/out of focus

 

[jacksin]

I will try to get a couple better pics tomorrow
Thx