Mar 30, 2024 #1 L love2homebrew New Member View Badges Joined Apr 28, 2023 Messages 2 Reaction score 1 Location Maryland What state or country do you live in Maryland Rating - 0% 0 0 0 Hello everyone I have a burgundy coating that is expanding on a rock. It will not come off and slimy to the touch. Any idea what this is?
Hello everyone I have a burgundy coating that is expanding on a rock. It will not come off and slimy to the touch. Any idea what this is?
Mar 30, 2024 #2 WalkerLovesTheOcean I love acans View Badges Photo of the Month Article Contributor Hospitality Award Rock Pool Reef Keepers My Tank Thread My Aquarium Showcase Joined Jan 27, 2024 Messages 5,719 Reaction score 28,898 Location New York State What state or country do you live in New York Rating - 0% 0 0 0 Dying coralline algae can sometimes look like that, but I am not sure if that's what it is.