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Classic Series Recirculating / External Protein Skimmers As one of the Reef Octopus Classic Series skimmers, this Classic 150ext will provi...

Replacement ReefDose Head for ReefDose 2 and ReefDose 4

HYDROS Control Power Supply (w/ Terminator) HYDROS Control Power SupplyAllows you to power the HYDROS Control.   This power adapter is NOT compatib...

HYDROS Minnow is an aquarium controller with two micro-liquid dosing pumps for precise dosing of two-part and trace elements. It can handle essenti...

Optimize Your Radion: The Right Lens Kit for Every AquariumIdeal for Deep Aquariums or High Radion MountingHigher PAR, Narrower FocusCompatible wit...

Max Flow: 4220 GPH (16000LPH) | Max Head: 29.5 FT (9M) The VarioS 10 is a pressure-rated circulation pump that features a detachable controller, a ...

Monitor Passing Water FlowThe HYDROS Flow Sensors are easy-to-install flow meters that communicate to the HYDROS app the flow rate of water passing...

Max Flow: 4,500gph | 11~32watts | 80 - 500+ gallonsIncludes: Pulse 4 pump onlyThe new Octo Pulse 4 is a fully controllable flow pump that moves up ...

The addition of lime water is another method to increase the calcium in marine aquariums. The calcium hydroxide is dissolved in a separate c...

AquaUV 40W Classic Transformer

The All-New Hydra® 64HD and Hydra® 32HD are here with more of what you love.   More LEDs. More Power. More Color. More Refined.   With over 20% ...

The new and innovative Reef Octopus Elite 220-INT in-sump protein skimmer supplies powerful filtration for aquariums up to 530 gallons. The Reef O...

DISSOLVED OXYGEN PROBE   While the cost of the Dissolved Oxygen Module – PM3 is very reasonable, the down side is that the DO probe itse...

Real-time Monitoring of Dissolved Oxygen in Many Aquariums is a Great Safety Net Many marine aquarists only give the oxygen content in their...

Efficient Filtration for Crystal Clear Aquarium Water Maximize water quality in your reef or marine tank with the AquaReady Sigma-1 In-Sump Media R...

OCEAN DIRECT™ Live Sand stands apart from every other “live sand” on the market. Using patented Sea Breathe™ technology, Ocean Direct™ preserves ge...

Make Your Sump ReefMat-Ready in Minutes – Only at Reef Supplies! Upgrade your Red Sea REEFER sump the easy way with the Red Sea ReefMat Sump Modifi...

High accuracy colorimetric comparator tests for the exceptionally high accuracy measurement of Nitrate and Phosphate (suitable for all reef systems...

ReefMat 1200 Dispensing Shaft

Replacement pump for IceCap K1 skimmer models using the EVAir 400 pinwheel pumps.

Red Sea ReefWave Extension Cable