Need help IDing this algae.

[mochaclownlover]

I can’t figure out what algae this is. I’ve had it for at least 6 months. It spreads over the rocks in kind of a sponge-y-mat. It’s also slimy to the touch. It won’t come off the rocks with a toothbrush only metal tools. I have also had chrystopates in the past, but those were the early months of the tank being set up(tank is over a year old, Chrysts popped up in like the 3rd month of being set up).I am also currently battling turf algae and a bit of green cyano, but those just came about recently. This image from my BTA cup is the best example of how this algae looks and spreads. I also scraped a piece off with my finger(2nd &3rd pic).

This is an image of some of the affected rock work.

The area outlined in red shows one of the only clean spots on the rock()

This is a shot of the rock work( sorry not the best pic)

An ID of this algae would be very appreciate.

 

[Rjukan]

Pics with the whites turned up will really help a lot.

 

[mochaclownlover]

Sorry, here are some photos with on whites on

 

[Rjukan]

Nice tank, your RBTA looks awesome!

I'm not an expert with algae and I wish I could answer your question. @Scrubber_steve is who I would turn to for some advice, hopefully he will give you an idea on what you're dealing with.

 

[Brad Miller]

So hard to tell from the pics

 

[Scrubber_steve]

I'm no expert, & its often impossible to tell from photos what something might be, even very good photos.
You have some other nuisance growth also. I would make sure you have good flow, keep NO3 below 5ppm, & PO4 below 0.08.
Maintain mag potassium cal & alk & get a strong coralline growth going.