Hi there, i'm new to the Forum and also fairly new to keeping Marine Fish.
The question i want to ask is, i recently brought some (9kg) of Live rock off of someone who was shutting down there system due to house move. The chap looked like he knew is stuff the tanks he had where pretty amazing. Its been about a month since i got the rock and the tank looks great, but i have noticed that there is alot of what looks like Wool growing from the rocks, its Orange and Purple and its growing very fast. Any ideas what it is? And is it normal?
Sorry if this is a silly queston, like i said i'm fairly new to all of this.