A specialized housing unit, the AIO Refugium enables the cultivation of Chaetomorpha and other macroalgae for effective natural nutrient export. This addition enhances filtration and boosts system biodiversity by providing a safe, protected environment where Copepods, Amphipods, and other small organisms can thrive. The unit is secured with an adjustable clamp and designed with an innovative feature that accommodates the installation of an LED light to promote healthy growth. Its opaque construction prevents excess light from spilling into the main display aquarium.