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 compact design fits in your pocket or stores easily in...

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 approximately every 700 hours of pump run time.

Oceans Wonders CORALLINE PURPLE reef safe epoxy bonds just about anything. It is designed to be used for attaching corals to our frag mounts or live rock. Works under water or out. Very easy to use and is safe for all fish, corals and invertebrates in...

You can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed through CaribSea’s cooperation with public aquariums and zoological parks...

OceanMagik is a nutritious mixture of four Live Phytoplankton strains (Nano, Iso, Tet, and Thal) that is great for feeding copepods, corals, clams, and other filter-feeding inverts. OceanMagik is a hand-selected blend of the most...

"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. Real Reef Branch Rock is our...

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

This is the new reagents set with 1x Powder, 1x Liquid. These Reagents are for use with the HI783 Marine Magnesium Checker. These high-quality reagents are manufactured at the Hanna state-of-the-art facility and are clearly marked with...

Tigger-Pods (Tigriopus californicus copepods) swim upwards with a stimulating, jerky motion, they are attractive to a wide range of fish like Mandarin dragonets, Seahorses and Pipefish. They are easy to...

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 all acrylic weather and shatter resistant design...

The Fauna Marin Reef ICP Total Test gives a quick, accurate, and easy overview of over 90 water values in reef aquariums. From macro elements to trace elements and pollutants, you get a complete overview with corresponding dosage and action...

Our Reef Cleaner Packages are Wild Collected they let you naturally control algae, maintain crystal clear water, and keep your sand bed sifted. The number of cleaners provided in these packages are based on years of experience, and are tailored to...

Scarlet & Blue Leg Hermits are an essential part of any Clean up Crew.  This omnivore can access the smallest crevices and openings within aquascape to consume any nuisance algae including hair algae and cyanobacteria. They also will consume...

Fritz ProAquatics Reef Pro Mix (RPM) is manufactured using only the highest quality raw materials. Formulated by researchers and marine scientists, RPM contains all of the necessary major and minor elements of natural sea water that are utilized by...

The MarinePure GEM is about ¾“ diameter part that will be the perfect biological media for canister filters, hang on the back and nano-tank systems up to 70 gallons. The GEMs have the same porosity as our popular MarinePure SPHERES. Their...

Super nutritious Natural Green Seaweed. Ideal for marine herbivores such as Tangs and Surgeonfish, Moorish Idols, Parrotfish, Angelfish, large Butterflyfish, and herbivorous freshwater fishes, such as Cichlids and Goldfish. Size: 30g (1 oz)

Filter socks are used as a effective first stage of an aquariums filtration process and should be placed so that water coming from the tank filters into the filter sock first removing uneaten food, detritus, organic waste, dust and other small...

Reef Fusion 1™ and Reef Fusion 2™ are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1™ provides calcium, while Reef Fusion 2™ provides alkalinity. When used together, the Reef...

Hand crafted in small batches at the Piscine Energetics' laboratory in British Columbia, Canada; PE PELLETS are a highly palatable, nutritionally complete fish food designed to enhance coloration and induce an energetic feeding response in all varieties...

Coral Rx was developed in 2006 for two purposes: to treat corals suffering with parasites, and as a prophylactic measure to promote healthy corals before parasites or bacterial infections become harmful. Coral Rx is tough on parasites, yet gentle on your...

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 providing for a much more precise evaluation. Each...

Our Reef Cleaner Packages are Wild Collected they let you naturally control algae, maintain crystal clear water, and keep your sand bed sifted. The number of cleaners provided in these packages are based on years of experience, and are tailored to...

This species of chiton grows to be about 7 cm (2.8 in) in length. The girdle is densely spiky and usually has a few black bands. Consumes: Hair Algae, Cyanobacteria, Diatoms and Turf Algae The surface of the valves (or...

Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for...

IC-GEL™ is a cyanoacrylate paste that is extremely thick which comes in an applicator tube like toothpaste. It has the same bonding and curing time characteristics as MAXI-CURE™. IC-GEL™, however, can be applied to a vertical surface...

Nudis are a  big-time herbivore.  Don't purchase these unless your tank has algae or your willing to feed them algae.  They love hair algae and they are great for going in there and clearing it up for you.  They are very popular,...

Perfect diet for all smaller marine fish providing all the nutrition they can handle. Marine-S is formulated to establish proper metabolism while maintaining good digestive system health. The digestive tract is where many bacterial and fungal diseases...

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 them with food, but in amounts that get consumed...

Super nutritious Natural Green Seaweed sheets. Ideal for marine herbivores such as Tangs and Surgeonfish, Moorish Idols, Parrotfish, Angelfish, large Butterflyfish, and herbivorous freshwater fishes, such as Cichlids and Goldfish. Size: Bulk 100...

HI70024P is a premium quality 35.00 ppt salinity calibration solution that is NIST traceable and contained in portable single-use sachets. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring...

"By the Pound" means you are choosing the weight of your rock. Ex: Qty 10  is 10 Pounds of Rock, NOT 10 Rocks. Selling individual rocks is impossible due to the fact that every rock is unique in size/shape/weight. Marco ReefSaver is a natural...

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 twist for perfect coverage Includes wire...

Foundation Pro Multi test kit High accuracy titration tests for the accurate measurement of theFoundation elements Calcium, Magnesium and Alkalinity (KH) It’s all in the balance Red Sea’s FOUNDATION PRO Multi Test Kit includes high...

Reef Safe Sterilized Clean Empty Hermit/Snail Shells.  Perfect new homes for your hermits as they grow.  These are designed for aquariums/reef tanks.  No polish, no paint, completely sterile. Mixed Sizes and Shapes.  Both Standard...

Trochus snails consume film algae, hair algae, diatoms and some species of cyanobacteria. These snails are excellent for cleaning the rocks and glass of your aquarium, but tend to shy away from the sand. Trochus snails can right themselves, but like...

Magnesium is present in NSW in a fairly high concentration (1300 - 1400 mg/L). Magnesium is an essential part of chlorophyll, which is necessary for photosynthesis. Without photosynthesis plants, including algae and the corals, which we usually have in...

Overview Brightwell Aquatics Lugol’s is an extremely powerful iodine solution. It should only be used by advanced reef aquarists to dose iodine as well as to create a dip for corals and their allies. The importance of iodine in a reef aquarium...

Medic is a highly effective water conditioner used to control external fish parasites present in both marine and freshwater environments. It contains a reef-safe oxidizing agent and is particularly effective against: Marine Ich - Crytpocaryon...

Chemi-Pure Elite adds ferric oxide to the original Chemi-Pure formula to also remove phosphates and silicates, making it the only complete choice for filtering any kind of aquarium. With Chemi-pure Elite, we have taken the next step in keeping Chemi-pure...

Efficient, high-flow, skimmer friendly non-woven polyester fleece-mat rolls. Installation Instructions for EVERY Red Sea Model - https://www.redseafish.com/hardware/reefmat/installation-options/ ReefMat 250 3.2” - Fleece-mat width