We store this in a climate controlled environment to keep it fresh - Good for 6 months at room temperature, 1 year at 50°F. Best to keep refrigerated for longest shelf life. One and Only Live Nitrifying Bacteria prevents new tank syndrome by...

Replacement Probe for Aquarium Controllers

Inkbird Dual Temperature Controller with Dual Aquarium Probes & WIFI control.  WIFI smart controller supports both IOS & Android，WIFI supports 2.4GHz Wi-Fi router, free APP “InkbirdSmart” which is able to monitor temperature...

308-WIFI： [WIFI & APP] WIFI smart controller supports both IOS & Android WIFI supports 2.4GHz Wi-Fi router, free APP “InkbirdSmart” which is able to monitor temperature at any time.  [Dual Relay Output] Dual relay...

Replacement Needlewheel Impeller for the Sicce PSK 1200 Skimmer Pump.  New Star Pinwheel Impeller, Complete rotor with shaft and rubbers.

While the newly redesigned SPEC stays true to its classic modern styling, this popular nano aquarium series now features an impressive high-output 7000K LED, which generates 20% brighter lighting performance for noticeably bolder fish colors and plant...

M series heaters combine modern aesthetics with reliable Italian construction. Employing an ultra-slim profile, M heaters are a welcomed departure from traditional, more bulky designs. The M series is highlighted by its reflective...

M series heaters combine modern aesthetics with reliable Italian construction. Employing an ultra-slim profile, M heaters are a welcomed departure from traditional, more bulky designs. The M series is highlighted by its reflective...

M series heaters combine modern aesthetics with reliable Italian construction. Employing an ultra-slim profile, M heaters are a welcomed departure from traditional, more bulky designs. The M series is highlighted by its reflective...

M series heaters combine modern aesthetics with reliable Italian construction. Employing an ultra-slim profile, M heaters are a welcomed departure from traditional, more bulky designs. The M series is highlighted by its reflective...

Keep unwanted aquarium inhabitants out with this cleverly design fish trap. Use this clever trap to remove a pesky crab or other problem animal. Easily trap fish by baiting with your fishes favorite food. The sliding door has a spot where you can attach...

Kamoer X1 dosing head replacement.

Versa-Top Hinged Glass Tops Keep fish and water in your aquarium where they belong. Our glass tops are perfect for reducing evaporation and keeping fish from jumping out of your aquarium. Each Versa-Top features a clear vinyl back strip that can be...

The Full Angle Adapter is a unique solution to properly lighting your aquarium. Compatible with the mounting arm, gooseneck adapter, and DIY mounting solutions, the Full Angle Adapter allows your light to be angled to reduce shadowing caused by large...

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...

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.

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...

"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.