Best Selling Products

Transform your plumbing setup with the John Guest Female NPT x Push-Connect Adapter, designed to seamlessly convert any 1/8” male NPT threaded conn...

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% ...

Reef Octopus VarioS-2/RODC-2500 Return Pump Impeller

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...

AvidAqua NeaterHeater – Magnetic Dual Heater Mount Say goodbye to slipping suction cups and unreliable heater clips. The NeaterHeater delivers a cl...

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...

Protect Your Aquarium Stand from Unwanted Leaks – Trident Drip Tray now Available at Reef Supplies Canada Even though drips and spills from the Tri...

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...

Ditch the Socks – Upgrade to the 7" High-Flow Filter Media CupAvailable at Reef Supplies Canada Tired of rinsing messy filter socks? Our 7" High-Fl...