Red orangish maybe even a rusty brown colored stuff started growing on my live rock. Im guessing its a type of algae. Im not exactly sure, but I set my lights timer because i went to see family on the west side of the state and when I came back the next day the stuff was on the glass substrate and circulation pump. Anyone have any idea what this stuff is and if its healthy?
Looking around my guess is its because I didn't use RO water to start my tank up. I haven't bought a unit yet but i plan to soon. I'm looking for any options to help the tank now.