cyano

As many of you know I had decided to do a restart on my tank and correct earlier mistakes/lack of knowledge from when I started my tank 2 years ago. Several of my corals were dead or dying and I had placed corals into my tank that I later realized was a mistake (Xenia, blue clove polyps, ect...) I looped my pump return from my sump back into my sump again, kept the skimmer running, maintained a constant temperature, maintained choeto in the refugium, and kept the biopellet reactor operational to ...