Tropical Fish Word of the Day: Refugium

Expand your tropical fish vocabulary with the Tropical Fish Word of the Day.

Refugium: (n.) A refugium is a separate aquarium or compartment within a reef system that shares the same water supply as the main aquarium. The purpose of a refugium is to protect marine algae, small invertebrates and other potential food sources from the fish and large invertebrates in the main aquarium. It is important in keeping balance and good water quality in a reef aquarium.

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