Refugiums are one of the most efficient ways of filtration in saltwater aquaria today. Not only is it a natural way to filter your display tank but it is a sanctuary for micro-organisms to flourish and reproduce. The Macro-algae used in the refugium will utilize nitrates and phosphates from your water column. These algae’s uses these nutrients to grow and thrive. Picture Notes: Model 45 pictured with optional equipment. RG-20 Specifications: • High quality cast acrylic refugium filter with unequalled value • Includes a 1x18 watt Compact Fluorescent Light for the Refugia area • First Compartment is 6" x 11.5" x 10" Deep to fit in-sump protein skimmers. • 1" threaded inlet and outlet (for external return pump) • Rated for tanks up to 90 gallons • 3 year warranty • Dimensions: 24L x 12"W x 16"H
* 800 GPH water flow