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Refugiums (often just called ‘Fuges’) are an excellent addition to any saltwater aquarium! Essentially refugiums are an area or separate aquarium that is a refuge from fish where macroalgae, copepods, and other micro crustaceans are free to grow without being eaten. They can be as simple as using a small area in your sump with a basic light, or adding an additional aquarium to your system with a deep aragonite sandbed, various types of macroalgae, live rock, and high-end lighting. It’s all a matter of what works best for you! They have many benefits like: providing phytoplankton and zooplankton for...

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