Green Slime Algae? And what to do?

[Hepatitis]

Photos of certain spots in tank and a few microscope shots under different magnification.

It's everywhere, it's even on my acros and my zoas. Corals don't seem to mind too much, but I do.

Parameters -
PH 8.1
Calc 420
Mag 1250
Ammonia 0
Nitrite 0
Nitrate 10
Phos .5 (yeah... I know. I'm working on it and it's part of the problem)
Tank is 2yr old

I'm throwing some Phos ban in tomorrow, but I do want to confirm what this is so I can kill it right

 

[SPR1968]

It’s probably due to raised phosphate levels, but sounds like your dealing with that

I use rowaphos for phosphate control

If you have corals I would also raise the magnesium to around 1300-1350