Please help. I have brown slime algae taking over my glass 1 day after scraping along with 1/3 water change (90gallon). Also hair algae is growing out of control. I do not consider myself an expert but have been doing this for 8 years with never experiencing this type of outbreak. Recent water test shows: 76degrees ,1.023 salinity, PH 8.3, AMM 0, Nitrite 0, Nitrate 50 (yes should be 0). I have a Naso Tang, Blue devil damsel, Coral Beauty Angel, Sailfin Tang and a juvenile Koran Angel for livestock. 65lbs of live rock, 50lbs live sand (about 3" deep) and 2 54w actinic along w/1 250w MH 14K. I am using a 55g as a sump/refugium that has atleast 75lbs frag rock, 40lbs crushed argonite (1 partition), 30lbs live sand (2nd partition), bio balls,caulerpa ,2 Tetratec PF500 mech. filters ,Lifegard 4 unit filter system and a RedSea Prizm skimmer. The lighting runs 8 hrs a day (MH only 6 of the 8).
Any thoughts on where I might be going/doing wrong?
Any thoughts on where I might be going/doing wrong?