Algae issue, help Identify and fix please

[cane]

In my refugium I’m getting this light brown dusty looking stuff laying around the bottom and in the main display I see this dark brown hairy stuff coming off my rocks and Coral’s. I also have as you can see very heavy coralline algae which is a plus. And some red hair algae that I do want gone. What’s going on. Please help.

Temp 78.5
PH 8.22-3
Calc 383
Alk 11.6
Mag 1260
Nitrate .o1
Nitrite 0
Phos 0
RO/DI 0 (I change resin when it hits 1)

Tank was set up Nov 2017’ and is a 325 gal system. I upgraded from a 1yr old 90 and transferred everything over. I have 10 fish.

 

[TheAquarian]

Looks like coraline algae from the photos. Not really a bad thing if it bothers you you can scrape it off the all’s with a razor blade nad give the equipment a vinegar bath.

 

[cane]

I’m ok with the coralline. It’s the other stuff that’s a problem