Hi everyone, I have several montiporas, a pocillipora, two bizarro, and an a can that seem to be slowly withering away on me. They were doing well for awhile and had growth, but now they’re tissue seems to be receding starting primarily at their bases and then working up. I have a hair algae problem I’ve been battling and it doesn’t seem to want to die. I’m not sure if that’s a factor and now the GHA is showing up on the white spots of the hard corals. My parameters as of tonight: Salinity: 1.026 Alk: 9.9 Hanna Cal: 500 Phosphate: 0.05 Nitrite: 0 Nitrate: 5-10 Mag: 1480-1500 Temp: 78.4-78.6 I have a 90 gallon with a wet dry system/sump, changed 15 gallons last weekend and about another 15 gallons this weekend - using reef crystals salt with RODI water. I have a small amount of cheato in a reactor off my sump. I’m using current USA loop leds (I have two bars running). No carbon or gfo right now. My tank has been running since August 2017 using mostly dry rock, but brought some live from a nano I’ve been running about 8 years. I’m open to suggestions. It’s been depressing watching my corals losing color, withering, and bleaching. Any insight would be amazing.