Professional 15x strength live tank starter nitrifying bioculture for rapidly cycling new marine fish and reef aquaria and brackish aquariums, and for recovering from overcrowding or disasters where the bacteria bed has been damaged or...

Professional 15x strength live tank starter nitrifying bioculture for rapidly cycling new marine fish and reef aquaria and brackish aquariums, and for recovering from overcrowding or disasters where the bacteria bed has been damaged or...

ReefLED™ hanging kit including replacement ReefLED 50/90 top cover plate.

ReefLED™ hanging kit including replacement ReefLED 50/90 top cover plate.

The Flex 32.5 US Gal. (123 L) makes an exciting addition to Fluval's bold curved aquarium series. It comes equipped with a mobile device operated Aquasky LED that offers total control over brilliant custom colors, multiple dynamic effects and a...

Perfectly sized for the Flex 32.5 US Gal (123 L) – Item #14995, sold separately Curved stand follows the smooth contours of the Flex aquarium Sturdy cabinet in black with Ash grain-look doors and a gloss edge Swing-open doors with soft-close...

Replacement remote that works with the controllable LED series (CRV, KLC, HLC, etc.).  Battery included. 

See your corals in a whole new light through the Fritz Aquatics coral viewing glasses!These specially designed glasses block the blue light so you can see your corals at their most vibrant.

Optical grade magnifying lens with 4" viewing portal is perfect for aquarium photography with focal range approximately 3 to 8 inches. Held in place by strong rare earth magnets for use on tanks up to 5/8" (16mm) tank wall thickness Easily moves...

Mount your Vortech Pump Controller in style.

Mount your Vortech Pump Controller in style.

Mount your Vortech Pump Controller in style.

Mount your Neptune APEX display in style. with this new APEX Display Holder. Simple Installation Features a simple mounting slot for super easy to mounting and aligning. This kit includes the mount and a mounting screw.

Mount your Neptune APEX display in style. with this new APEX Display Holder. Simple Installation Features a simple mounting slot for super easy to mounting and aligning. This kit includes the mount and a mounting screw.

Mount your Neptune APEX display in style. with this new APEX Display Holder. Simple Installation Features a simple mounting slot for super easy to mounting and aligning. This kit includes the mount and a mounting screw.

Acclimating fish and coral gives your new arrivals and fin up for living in your tank. Drip acclimating is less intensive on you and easier on the fish. This simple, yet effective drip acclimator is used around our office and by Mr. Saltwater Tank...

Acclimating fish and coral gives your new arrivals and fin up for living in your tank. Drip acclimating is less intensive on you and easier on the fish. This simple, yet effective drip acclimator is used around our office and by Mr. Saltwater Tank...

The ClariSea fleece filter is a high efficiency water filtration system which effectively removes suspended particles such as micro algae, detritus, food, organic waste and gravel dust from the water column. Suitable for use in marine aquariums,...

Make happy hour even happier with this salty pint glass! With a capacity to hold 16 ounces of your favorite brew, this clear pint glass is surely a crowd pleaser.

Use this cable to connect Apex Systems and modules together. The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to connect together the Apex,...

Mount your Vortech Pump Controller in style.

Mount your Neptune APEX display in style. with this new APEX Display Holder. Simple Installation Features a simple mounting slot for super easy to mounting and aligning. This kit includes the mount and a mounting screw.

The Voyager 2800, 3200, 3600 and 4000 Pump. The New Voyager HP or High Performance series builds upon all of the same great features and technology of the models 1 through 4 but takes them to another level. The models range from 2800 to 4000 gallons per...

The Voyager 2800, 3200, 3600 and 4000 PumpThe New Voyager HP or High Performance series builds upon all of the same great features and technology of the models 1 through 4 but takes them to another level. The models range from 2800 to 4000 gallons per...

The Milwaukee MW101 PRO pH meter has won fans around the world with its reliable, fast and simple operation as well as its toughness and accuracy. The MW101 delivers fast results to ±0.02 pH accuracy with two point calibration...

Neptune DOS NOT Included, 4 Fittings ONLY Fitting used to connect the APEX dos to standard 1/4" RODI tubing.  Makes the Neptune Systems DOS Pump a push fit for easy and secure tubing connections. Pro Tips The tapered portion of the dos head...

Direct Pump Driver - For TUNZE 0-10V pumps the HYDROS WaveEngine connects directly to the pump head. This removes the clutter of the power brick and the control head for these pumps.

With the Fauna Marin Multi-Reference Solution, you can test your test kits under accurate conditions. Our Reference Solution is the first to be based on a saltwater matrix and is quality tested using our ICP-AES testing machine. We use a saltwater matrix...

Neptune DOS NOT Included, 4 Fittings ONLY Fitting used to connect the APEX dos to standard 1/4" RODI tubing.  Makes the Neptune Systems DOS Pump a push fit for easy and secure tubing connections. Pro Tips The tapered portion of the dos head...

Reef Octopus Aquatrance Water Pump w/ Prop Impeller Efficient water pumps provide exceptional performance at an economical price. Direct replacement pumps for newer Reef Octopus calcium rand biochurn reactors. Replacement pump for the following...

The A360X has 25% more light output with 30% less in volume size, equivalent to almost 80% higher PVD than the A360. Kit Includes WIFI Dongle: The Kessil WiFi Dongle is the simplest, most reliable wireless lighting option in the market. Used...

The A360X has 25% more light output with 30% less in volume size, equivalent to almost 80% higher PVD than the A360. Kit Includes WIFI Dongle: The Kessil WiFi Dongle is the simplest, most reliable wireless lighting option in the market. Used...

"By the Pound" means you are choosing the weight of your rock.  Ex: Qty 5  is 5 Pounds of Rock, NOT 5 Rocks. Selling individual rocks is impossible due to the fact that every rock is unique in size/shape/weight. This is Marco Rocks newest...

110V power supply for our DC24 accessories like the PMUP, GRO Refugium LED and Solenoid Valve.  You can use these when there are no available DC24 outputs on your EB832 or 1LINK but do have physical 110V outlets available.

Seachem’s Coral Plugs™ are a chemically advanced means of supplying a unique platform for the stable mounting and/or grow out of all coral fragments and colonies. They are enhanced with calcium and magnesium to aid corals in rapid and secure...

The Maxspect Aeraqua Duo AD600 Protein Skimmer is the world’s first dual-intake, dual-needle wheel protein skimmer for aquariums up to 300 gallons. The Maxspect Aeraqua Duo AD600 Protein Skimmer is the world’s first dual-intake, dual-needle...

Kit Includes: 2x - EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...

Kit Includes: 2x - EHEIM Thermostat E Heater - Made in Germany, 3 Year Warranty, Run Dry Protection & INK BIRD Dual Aquarium Thermostat Temp Controller for Redundancy! The obvious ideas are often the best. This also applies to the aquarium heating...

TUNZE® LED eco chic refugium 8831 for algae cultivation in marine refuges or plant growth in fresh water basins combines both attributes "eco" and "chic" into a highly effective, perfectly-designed aquarium illumination at an absolutely reasonable...

Connect your Abyzz pump to an APEX controller with this simple to install interface cable and use Fusion to do all your programming for 24-hour cycles, enable feed modes, and apply warnings and alarms. Connecting the Abyzz to Neptunes Apex Interface...