Hello R2R, I have some sort of emergency going on. Ive been fighting it for about a month and its been tough. My tank is about 7 months old, 40b eith 20 long sump. Filter pads, Reef Octopus 110int skimmer and in the beginning about a 4 gallon fuge that somewhat stalled. About a month ago I starting noticing some brown/redish slime starting to accumulate on the sand. Corals and fish were all happy and just like normal. The slime was managable and I figured it was just part of the uglys and was letting it run its course. 24 hours later 4 out of 5 fish were dead and the 5th followed 3 days later. I suspected Velvet. The brown/redslime started getting worse but corals were still alright. The nem I had at the time also disappeard into the rocks. It was a rbt about the size of a half dollar. A couple weeks later the slime blew up. I began to have undetectable phosphate but nitrate stays consistantly over 50 with redsea. They have been over 50 the entire time ive had the tank. So with undetectable phosphate I took the fuge offline and the chaeto ofcourse died off so it was removed. Slime got worse and worse but corals were alright. Finally enough was enough so I dosed chemiclean. All my euphilla died and the slime lessened but didnt go away. About a week later we were back to ground 0. I just finished another round and see the same issues. I am doing proper water changes and my parameters are alk: 9.3, cal: 415, mag: 1400, nitrates: 50+, phosphate: 0.0, ammonia: 0, temp 78. I push about 400 gallons through the sump and hour and have a Maxspec Gyre 330 and tunze powerhead in the display. My sand bed is only about an inch deep. With 30 lbs of what was dry reef saver rock and a marine pure plate in the sump. I also have carbon running. I know its a lot of info but im just trying to be thorough. This is frustruating but I cant give up.
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