Berlin Method of Filtration

Berlin Method of Filtration: A biological method of filtration which involves only live rock and a protein skimmer.
Berm: A broad area of low relief in the upper part of a beach.

associate the many strains of bacteria on rock which has been removed from part of a tropical reef. Live rock is essential for reef aquaria as it initiates and maintains the nitrogen cycle. It is the main element in the berlin method of filtration.

See also: Cycle, Water, Freshwater, Live Rock, Rock