Algae help needed

[Llorgon]

Currently battling a algae outbreak. Not sure if it's Dino's, calothrix or something else.

My params are

Temp: 80
Salinity: 1.026
pH: 8.3
Ammonia: 0
Nitrite: 0
Nitrate: 0
Phosphates: 0
Alkalinity: 8.2
Calcium: 440
Magnesium: 1410

I have a protein skimmer running, chaeto in the sump with a light that comes on opposite to the display tank lights, feed once a day 1/4 cube of mysis or some pellets.

I have increased flow and skimming. Also added a filter sock and blowing off rocks/sand daily. Haven't made any progress on it so far.

How can I beat this?!

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