Hello! I have this weird brown algae growing on some of my corals. It looks like it could either be dinos or brown hair algae but it only grows on a few of my corals plugs and only a couple spots on my rockwork. The tank is about 5 months old. I run a protein skimmer just did a 20% water change today. Phosphate tested .04 today and nitrate tested well above the measurable scale on my Red Sea test kit. Whatever this algae is looks like it’s killing my candy cane coral.
