Hey guys I have this red encrusting stuff growing in my tank and don't really know what it is. I checked my water and everything seemed to be fine, even did another water change. Fish seem fine and corals are thriving. Any one here know and have a way of getting rid of it?
I know the stuff below it is coraline algae but this stuff just seems more red than purple and kinda looks like a dark red monti cap of some sort. I have other coraline algae in my tank I haven't seen it grow like this though.
I thought you were talking about the red stuff below what you marked. The purple stuff that you marked could be a photosynthetic sponge, or macroalgae like Omar said.
