I have no idea what this is. My tank is a 6 gal tank and I’ve been struggling maintaining it with the heat. Water params are all normal, I’m stumped. It’s only on my polyps. Not on rocks
Sorry to hear you're having problmes! It's a serious bacterial infection, it's likely your tank has gotten too warm. If there's any chance of saving anything you'll need to gently siphon any slime off the corals (expect dead polyps to be siphoned off as well) and keep temps lower.