So been fighting this for 2 months now... it gets worse by the day. First month was told that it's cyano and used 3 treatments of redslime and it only got worse. Tested my water parameters and found that my phosphates were 0.00ppm so I read up on the Big Dino thread and did a entire 4 day blackout and installed a UV. First day after unwrapping tank looked amazing... kept dosing phosphates to maintain 0.08. For some reason my tank is going threw 0.04 of phosphate daily. I'm now a month in and this stuff is showing up on most of the sandbed and back on the rocks. 130 gallon system been running for a year. I run skimmer/socks / UV / carbon. Mostly have small frags of zoanthids/ mushrooms a 5 head torch and 1 small hammer. I have plenty of flow, 2 icekap 4k gyres and a good amount of fish and are fed 2x a day a mis between flakes/frozen/nori
Daily testing #s this past month.
Salt 0.025
Alk. 8.5 (solid) Hanna
Cal. 425 (solid) Hanna
Mag. 1290 (solid) Salifert
Nitrate. 15ppm. NyOS
Phos. 0.08 (dosing 0.04 daily) Hanna
Pics / Video attached under blues and under whites.
Daily testing #s this past month.
Salt 0.025
Alk. 8.5 (solid) Hanna
Cal. 425 (solid) Hanna
Mag. 1290 (solid) Salifert
Nitrate. 15ppm. NyOS
Phos. 0.08 (dosing 0.04 daily) Hanna
Pics / Video attached under blues and under whites.