The Marine Alkalinity (dKH) Checker® HC Calibration Check Set - HI772-11 provides a simple solution to validating the Marine Alkalinity Checker® HC - HI772 that has a range of 0.0 to 20.0 dKH. This high-quality set of standards is...

The Milwaukee Instruments MA957 adjustable flow CO2 pressure regulator has two valves to independently measure flow rate and remaining CO2 tank contents (CO2 tank sold separately). Each valve has dual-scale readings in psi and kg/cm. The needle-valve...

A magnetic stirrer for mixing water test reagents efficiently and effortlessly. LABOR AND TIME SAVING Water testing is critical and necessary for aquariums. However, it is annoying and time-consuming to mix different test kits one by one...

Designed with hobbyists needs in mind the highly effective flow dynamics of the REEFER™ Skimmer will maintain an optimal ORP (REDOX) level of over 350mv, a level that is normally associated with ozone treatment. RSK - 300 Footprint - 9.1...

The HYDROS Launch is a multifaceted aquatic support system that combines various features into a single controller. It's an all-in-one solution that allows you to manage a wide range of aquarium functions easily. The HYDROS Launch...

A blend of the 5 marine microalgae most commonly used for their superior nutritional value for aquaculturing marine species of all kinds: Pavlova, Isochrysis, Thalassiosira weissflogii, Tetraselmis, Nannochloropsis, and Synechococcus. A blend of the 5...

This is the first Mass Spec test offered to the aquarium industry.  We will test over 50 elements down to ppt, parts per trillion.  There is not any test more accurate available.  This test is up to 1000x more accurate than traditional ICP...

ONE FREE ITEM PER ORDER.  THIS STICKER IS FREE WITH ANY ORDER OVER $50.  JUST ADD $50 WORTH OF PRODUCTS TO YOUR CART AND THIS ITEM WILL BE FREE. Sticker is 3" by 5" on white adhesive background.

Some of the most successful reef aquariums employ the use of a macroalgae-filled growth area or refugium for the purpose of nutrient control. The GRO is a specialized, 20W LED light designed to grow many types of common macroalgaes (i.e. Chaetomorpha)...

Marco ReefSaver is a natural rock that is harvested on land from an ancient reef system buried when the Florida land mass was formed.  Whether you are building a Saltwater fish only, a Reef tank or a Fresh water tank, and even reptile environments,...

ALL-NEW DURABLE PACKAGING! A fast-growing nutrient sponge. Sea Lettuce. is commonly found on shallow, rocky reefs worldwide. This delicate green algae prefers brightly lit waters with high nutrient levels. Thus, it can quickly reduce...

Description The MA911B/2 probe is lab grade, gel-filled pH probe for use with Milwaukee Monitors and Controllers. Design Features Top features include: Double Junction The double junction junction design reduces the risk of clogging. Spherical...

This bottle of reagent grade ammonium chloride is for use when fishless cycling. Concentration is 40 mg/ml of total ammonia-nitrogen (TAN). Dose 4 drops per gallon of aquarium water.*  Use with One and Only Nitrifying Bacteria...

Proven High Quality Now at an Entry Level Begin your aquarium journey with the most advanced AIO (All in one) aquarium safety features and award winning quality designs. The Fusion Cube comes standard with a built-in emergency overflow, preinstalled...

Blue/Green Tubes - 4 x 3m (10')

Are your corals not as vibrant as you expect? Have you ever had an aquarium crash unexpectedly? Now with the seneye Reef you can continuously monitor and analyze key life-critical parameters in your saltwater aquarium to ensure that your corals and fish...

Fantastic shapes, incredible colors… Well check out new LifeRock™ Shapes, the latest version of CaribSea’s amazing LifeRock™ line up. Each 20 pound box comes with 4 arches! There is simply no better, no more spectacular way to...

PNS Probio Live purple non-sulfur bacteria (Rhodopseudomonas palustris): Live Food for Coral high in protein and vitamin B12 Removes Ammonia. Removes Phosphates. Free Swimming. Photosynthetic. Anaerobic...

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...

Tidal™ Power Filters are designed from the ground up to provide your aquarium with high-quality, comprehensive filtration. They are easy to use and adaptable to a variety of aquarium conditions. With a host of features including a self-priming...

Compatible with both G5 and G6 Radion XR30s. Multi-Light Radion Mounting System - Slide Mount The Multi-Light RMS is a modular and customizable Radion LED mounting solution for all XR15 and XR30 systems, Gen 5 and earlier. The RMS Slide Mounts connect...

The Fire Shrimp is a beautiful deep blood red that will stand out in any reef aquarium. This shrimp is generally hardy and suitable for many aquariums. The tank should have structures that offer caves and recesses for the shrimp to find refuge and...

Since its launch, the Vectra lineup has been evolving. Design and material changes have ensured the reliability, thermal efficiency, and general operation of Vectra 2s are second to none. Improved couplings -  specific for standard PVC - ...

Red Sea’s Coral Pro Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Coral Pro Salt is ideal for reef aquariums, in particular for...

Bring the award-winning pumps and lights from EcoTech Marine and AquaIllumination wirelessly under the control of the easy to use, yet powerful, Neptune Systems’ Apex and Apex Fusion interface. Scheduled Feeding With the Apex, you can...

Xport-BIO Ultra-porous Biological Media with Superior Performance Characteristics. Overview: Utilizes NanoIntelex Technology to create an enhanced material with vast surface area for colonization by beneficial nitrifying bacteria, resulting in rapid...

Rowaphos is the leading phosphate removal media for marine and reef aquariums. Rowaphos will not leach any phosphates back into the water. RowaPhos is a unique man made ferric hydroxide material specifically produced for efficient removal of phosphates,...

One Random Mystery Rock Flower Anemone Coral 3/4" - 5"+ in size.  Pictured Anemones are examples of some of the types of random Mystery Anemones that may be sent to you. If you are looking to start buying coral online to add to your reef tank,...

Red & 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 uneaten...

  ALL-NEW DURABLE PACKAGING! Each 16oz portion of Poseidon’s Feast contains 3000+ LIVE Tigriopus and Tisbe Copepods ranging from nauplii to adult sizes. Poseidon’s Feast is great for seeding new tanks and refugiums, boosting...

The Aquatic Life Twist-In 100 GPD 3-Stage Reverse Osmosis (RO) and 4-Stage Reverse Osmosis Deionization (RODI) filtration systems are very compact water purification solutions that efficiently combine reverse osmosis RO and DI technology with our...

Jumpguard Feeding Portal This handy feeding portal will install directly onto the mesh of your Jumpguard, or other brand of mesh cover, providing  a convenient place to feed your fish and corals. This simple accessory can be fitted anywhere on the...

A blend of the 5 marine microalgae most commonly used for their superior nutritional value for aquaculturing marine species of all kinds: Pavlova, Isochrysis, Thalassiosira weissflogii, Tetraselmis, Nannochloropsis, and Synechococcus. A blend of the 5...

Prime® is the complete and concentrated conditioner for both fresh and saltwater. Prime® removes chlorine, chloramine and detoxifies ammonia. Prime® converts ammonia into a safe, non-toxic form that is readily removed by the tank’s...

Ammonia Test Kit The API® Ammonia Test Kit measures ammonia to help prevent fish loss, as ammonia is the number one stressor and killer of tropical fish. Ammonia is released into an aquarium in the forms of uneaten food, decaying organic matter, and...

Straightforward and safe water level controller for fresh and sea water with optical control sensor and independent thermal safety sensor. A constant water level keeps the salt concentration constant in seawater aquariums. Incl. Turbelle® High...

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 soluble and insoluble impurities from water at a rate...

TORQ® G2 SYSTEM REACTOR FOR FILTER MEDIA The Nyos® TORQ® is an innovative high-performance system reactor in a modular design for all types of filter media, such as active carbon, phosphate remover (GFO), zeolite and bio...

Real Reef Rock is our standard reef building rock. It comes in a variety of sizes from 4"-12".  It is very light, porous and full of holes and crevices. It is three dimensional in shape and comes in many natural shades of purple, pink and red. It...

Produce a more natural flow pattern in your saltwater aquarium with the RFG Nozzle. Available for 1/2in,  and 3/4in with a loc-line fitting and now available in 1 in. slip fitting. The RFG Nozzle can dramatically change the way water moves around...