All Tubing is Sold by The Foot.  If you would like 10 Feet of Tubing, purchase a quantity of 10.  Need 20 foot of tubing, enter 20 for the quantity.  You can edit the quantity inside your shopping...

Trident Reagent Kit 6 Month Supply - With six month kits, the cost of running the Trident is less than $17 per month - that’s averages out to about 7 cents a test! Neptune Systems recommends keeping...

All Tubing is Sold by The Foot.  If you would like 10 Feet of Tubing, purchase a quantity of 10.  Need 20 foot of tubing, enter 20 for the quantity.  You can edit the quantity inside your shopping...

"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 th

The POLY-FILTER is for filtering and purifying both fresh and salt water aquariums. It is a formulation of a special patented material bonded to a synthetic matrix. By means of a unique proprietary...

If you don’t always have time an automatic fish feeder is ideal. Also when on holiday. You can easily programme the feeding times as well as the amount of food and the fish feeder ventilates the food...

ONE PIECE of Black Egg Crate for Aquariums. Modular - Each section of egg crate has built in connectors to secure multiple pieces together to create a larger section. The perfect solution to...

All Tubing is Sold by The Foot.  If you would like 10 Feet of Tubing, purchase a quantity of 10.  Need 20 foot of tubing, enter 20 for the quantity.  You can edit the quantity inside your shopping...

An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming...

All Tubing is Sold by The Foot.  If you would like 10 Feet of Tubing, purchase a quantity of 10.  Need 20 foot of tubing, enter 20 for the quantity.  You can edit the quantity inside your shopping...

All Tubing is Sold by The Foot.  If you would like 10 Feet of Tubing, purchase a quantity of 10.  Need 20 foot of tubing, enter 20 for the quantity.  You can edit the quantity inside your shopping...

The Jugs are shipped NOT FULL - there are directions on the bottles that you need to fill these with RO water and dilute the concentrated elements in them. Bionic Calcium Buffer is the original,...

We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets.

PLEASE ONLY PURCHASE 1x Two Month Supply.  We will not be able to restock any reagents for the next 30 days. 2-month reagent kit (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day)...

The HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital...

The gold standard for generating flow in reef tanks, the VorTech® is unsurpassed in beauty and functionality. Dimensions Dry-Side: 3.00 x 2.25 inches (76.0 x 57.0 mm) Wet-Side: 3.00 x 3.00...

The POLY-FILTER is for filtering and purifying both fresh and salt water aquariums. It is a formulation of a special patented material bonded to a synthetic matrix. By means of a unique proprietary...

Red Sea REEF-SPEC™ Carbon is a premium, highly activated carbon specifically engineered for marine and reef aquariums to ensure the highest standard of water clarity and purity. It is the ultimate...

The AI Prime 16HD is a customizable LED light for saltwater aquariums.  It's a full spectrum light that includes a moonlight channel.&nb

An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming...

It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the...

A too high nitrate concentration can result in unwanted algae-growth and these might irritate corals in their neighborhood. Nitrate as such also retards coral growth. The nitrate concentration in a...

Purigen® is a premium synthetic adsorbent that is unlike any other filtration product. It is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes...

The Crossover Diet from Neptune Systems is a new type of food that was designed specifically for coral reef tanks and specifically for automatic feeding systems. Working closely with Reed Mariculture...

The HI731315 are spare glass cuvettes and plastic caps used with the HI7XX Checker® HC colorimeters. Each cuvette has a 10 ml level mark to measure the appropriate volume. The HI731315 includes 2...

The VeggieMag uses magnetic attraction instead of a suction cup to hold our SeaVeggies clip in place for windows up to 3/4” thick! It’s easy to position at any level in the aquarium, and easy to...

Prime Reef™ Flakes are a gourmet food, rich in seafood and zooplankton, for all reef aquariums. They contain a high inclusion of fresh seafood ingredients that mimic the nutritional value of a...

DŌS Replacement Pump Head Cap for your Neptune Systems DŌS module.  Complete assembly includes cover, peri-tube, fittings and roller wheel. Neptune Systems recommends that these be replaced...

PHOTOS ARE EXAMPLES - THESE ARE NOT MADE IN A MOLD - YOU WILL NOT BE GETTING THESE EXACT SAME ROCKS All rocks are unique in size, shape and weight. Fantastic shapes, incredible colors… Well check...

This refractometer does not come with a case or battery. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater...

Movement SynchronizedSimulating natural water currents found on coral reefs, eFlux™ controllable wave pumps provide tank wide circulation, improving water quality and promoting strong coral growth...

Easily mount your AI Prime® on your rimmed or rimless tank with the adjustable Prime Arm Mount. Available in 12" and 18" inch lengths.

Get accurate water testing results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This nitrate tester's...

With huge features jammed in a tiny package, the Duetto2 is the perfect ATO for your aquarium. XPAqua’s proprietary dual-optical sensor packs two precise level sensors in one incredibly small...

A complete kit for mounting a single AI Hydra 64 or 32. Includes brackets for Hydra 32 and 64 Lights. Rails can slide for positioning Clamps on rimless tanks up to 1.125" thick Light brackets...

Neptune Systems Magnetic Probe Rack Features – MPR: Organizes up to four probes. Designed specifically for the Apex Controller probes, a perfect fit for the thicker temp probes. Built with an...

The Maxspect Coral Gripper is a long reach tong grabber specifically designed for use in marine aquariums with 316L stainless steel components. Enjoy dry hands and arms as you easily gently move...

Feed your fish consistently, and safely, while you are home OR away! NOT A STAND-ALONE FEEDER (MUST BE USED WITH AN APEX SYSTEM) A key component of caring for aquatic animals is regularly providing...

Radion XR15 G5 RMS Tank Mount. Backward compatible with all previous generations of radions. Each kit contains everything needed to mount a Radion light on almost any standard or rimless tank...

(Reagents SOLD SEPARATELY) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this information to...