What kind of algae is this and what CUC should I buy to help the problem. Im EXTREMELY low on my CUC and have a 90 gallon tank. My tank has been neglected over the summer and I've spent the last month trying to restore it.
Get some spiny astrea snails, hermit crabs and ring cowries. I don’t know what your CUC already consists of, but these are three types that love rock duty.