Help identifying this algae

[Kingston]

Noticed this algae 5 days ago. Brown mostly. On rocks and sand bed with direct light. None on the sand bed where my sand sifter goby sifts all day but kole tang prevent it from coming to other parts of the sand. Don't see stringy or snout but see a lot of bubbles ( my little girls asked if I put glitter in the tank). Dinos on my mind...

400ish gallons 7 months old
120W pentair UV 5 months old
Temp 77.5
Salinity 1.026
Ph 8.3
Ammonia 0
Nitrate 5-10 Salifert
Phosphate 0.13, 0.11, 0.06 within 1 week
Alk 7.9 ( have been dosing Reef pro part A to bring Alk up from 6.1)
Calcium 434
Mag 1410

 

[Jeffcb]

Brown. Bloom. I happens. Keep nutrients low.

 

[Kingston]

Thanks. My nutrients are fairly low. I am almost starving my fish. My phosphate is 0.03 now. Not sure if it's being consumed by algae or me feeding low. Any input will be much appreciated.