We have 0 TDS on our RODI, there’s 3 live rocks in a 75 gallon tank. We have 3 firefish, a Valentini puffer, a Midas Blenny, a pistol shrimp, and a watchman goby currently. The tank is 7 months old. We feed reef plankton and rotate through Midas and brine shrimp and occasionally put the seaweed strip on a clip in the tank. Our parameters have always matched up with our LFS, but we don’t have a test for phosphates, so that must be what it is. Only being in for 7 months, we’re fairly new to saltwater. My husband has continuously had a freshwater since he was a kid, and we decided to go one step further and are still learning. Guess we need to learn fast as we have a new 200 gallon that we want to establish as a saltwater too that we’re currently working on resealing.
So the purple is definitely cyano?? I was afraid of that. We will scrape rocks and boat and water change today and then blackout. What should we feed during the 3 day blackout?