As we all know algae is inevitable in both Marine and fresh water aquariums and if not watched and without proper procedures for removal can quickly turn a beautiful aquarium in to something that resembles a scene out of a old Swamp thing episode. Some are easy to control some are a non stop...
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Depending on which algae ur dealing with etc, the CuC best fit to help manage it may differ.
Hope this helps! Post a thread there maybe with some good white-light pics of what ur dealing with to get better help!