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Saltwater Aquarium
Refugium Setup
A separate compartment or tank cultivating macroalgae, sand-bed fauna, and copepods to feed the display and export nutrients.
Difficulty: Intermediate
Tank Size: 20g+ Recommended: 40g
📖 Overview
A refugium ("fuge") houses chaeto macroalgae, live sand, and pods sheltered from predators. Nutrient uptake by algae exports nitrate and phosphate; pod cultivation feeds picky reef species. Standard in medium-to-large reef systems.