[BCWolfen]

Justin,

Does it look soemthing like this?



ALL: I've been meaning to ask about this myself. All the coralline on the back glass died off after I bought the tank from the move. Still had lots on the rocks. The stuff on the rock is slowly bleaching and being replaced by this. At first I was afraid it might be Cyano but then after reading, I realised this stuff is growing in my highest flow areas, right beneath my returns and in front of powerheads, which rules out cyano. There are small pathces of it appearing on the new rocks and things in the tank. It looks like velvet and has a very rich color. Is it just another form/color of coralline?

Thanks

(Justin: Hopefully this is the same stuff as what you have and the responses will answer your question)