Please help me ID this nuisance algae (pic)

[Fountainhead]

I've posted in other forums (never noticed this one. Go figure.) but I'm generally ignored. This algae has been plaguing me for months. Two pics below. The first shows how the algae grows in little spots all over the rock, and the second is a close-up that shows that it's hairy, though from the outside of the tank the hairiness is not obvious because it's very short and never grows long. It's spread now to most all of my rocks, and seems to grow best on top of established coraline. It's even growing now on snail shells.

I've been through months of water changes (up to 10% every other day), drastically reduced lighting, I've set up a phosban reactor, always used ro/di, scaled way back on feeding, added tons of mexican turbos, I change my PC bulbs (4x96watt, 10,000k+actinic03) every 6 months, and I have a good skimmer (Euroreef). I'm next going to try to drip kalk and get my ph elevated to see if that may help.

ammonia - 0
nitrites - 0
nitrates - now undetectable, but had been as high as 30 several weeks ago
sg - 1.025
temp - 80
phosphates - undetectable
ph - 7.8 - 8.1
salt - Reef Crystals (switched from IO)

Pics below. Can anyone identify exactly what this is, and offer some hope that I can beat it?

 

[graveyardworm]

There are so many red hairy algaes it may be impossible to get an exact id with just pics in the forums. Check this thread some of the same remedies may apply. http://reefcentral.com/forums/showthread.php?s=&threadid=745530&highlight=nightmare+red+cotton+algae

I had some red hairy algae and I found that turbos of Pacific origin will eat it. Mexican turbos are Caribean, and less likely to eat it.

 

[kmk2307]

Now that your nitrates are lower is it growing more slowly? Fleshy and filamentous reds like high nitrates. It looks like your coralline is growing well.

Kevin

 

[Fountainhead]

Actually, it's spreading. It's not growing any thicker in the spots where it started, but it's spreading to all the rocks, where it used to be just on a couple.

All my fish are in quarantine (Ich) and have been for nearly 3 weeks now. I figured that the lack of feeding would help lower the nutrient level and slow the growth, but it's grown even faster. Its almost as if it thrives in better conditions. Very frustrating.

 

[honeybee]

You might try a powerwasher on rocks that do not have corals. I have used an 1800 psi washer (chlorine free water). It does not remove or kill the coralline algae or the rocks.

Honeybee