4" filter media cups include a free high quality filter media bag, as used in Red Sea Reef-Spec Carbon. Cup Dimensions: 4.25 x 4.25 x 8.5"

The ReefATO+ sensor requires the electrical conductivity levels that are typical for seawater to work properly and therefore this system will not work for freshwater systems. The ReefATO+ is an exceptionally reliable auto top-off system that includes a...

The Red Sea ReefCan is an Auto Top Off reservoir designed to either fit in the cabinet alongside a sump or failing that, at the side of the cabinet on the outside. It will come in two sizes, a 40 liter/10.6-gallon volume, and an 18 liter/4.8 gallon,...

The Red Sea ReefCan is an Auto Top Off reservoir designed to either fit in the cabinet alongside a sump or failing that, at the side of the cabinet on the outside. It will come in two sizes, a 40 liter/10.6-gallon volume, and an 18 liter/4.8 gallon,...

Efficient. Quiet. Smart.The REEFER DC Skimmers include self-leveling technology that prevents over-skimming and full cups from spilling while continuing to aerate the water. Self-Leveling.The Self-leveling feature is activated whenever the wetness of...

SCUBA PRESET is a submersible electronic heater pre-set to 77°F / 25°C to ensure a perfect, consistent temperature for your aquarium with a 5 year warranty. They can be installed in all types of aquariums to simulate the natural...

The premium REEFER MAX series features the entire REEFER G2+ range in a Plug & Play configuration that can save up to $ 1,299! With the release of the REEFER DC Skimmer, ReefRun DC Pump and ReefATO+, Red Sea has finally completed the...