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Magnesium plays a critical role in marine aquariums by maintaining a balance between calcium and alkalinity. It is impossible to maintain calcium and alkalinity at the proper levels without also...

Aquarium Heater Controller The IceCap heater controller can connect up to two heating elements (sold separately) and provides precise temperature control for an aquarium. It includes dual-heating...

 3/4" - 1"+ in size. 1-2 heads. Pictured coral above is an example of what may be sent to you. If you are looking to start buying coral online to add to your reef tank, this is the best choice...

Five Random Mystery Gold Hammer coral 3/4" - 1"+ in size. 1-2 heads. Pictured corals above are examples of some of the random Gold Hammer corals that may be sent to you. If you are looking to...

Mastertronic (MT) is the latest addition to our product range for automated water testing equipment. MT will be able to communicate with our other products such as Alkatronic, Dosetronic, Solartronic...

Trigger Systems specializes in aquarium sump manufacturing and are based here in the USA (Dallas, TX). All Trigger sumps come with a full top support brace which is made of a solid piece of material...

The new and innovative Reef Octopus Regal 250-INT in-sump protein skimmer supplies powerful filtration for aquariums up to 600 gallons where sump space is not limited. The Reef Octopus Regal 250-INT...

Elevate your aquarium’s ecosystem with the Bashsea BioSpace Reactor, the most effective biological filter currently available on the market. Engineered for the serious hobbyist, this reactor utilizes...

Color changes from Purple to Amber upon exhaustion.  Reverse osmosis (RO) units use the worlds most efficient RO membrane material to achieve a 98.6% rejection of TDS from your incoming tap...

Tridacna maxima has the widest distribution of any Tridacnid species. It is found from the Red Sea, throughout the Indo-Pacific region, to Australia and Polynesia. It usually occurs in shallow, clear...

Accurate in both Fresh and Saltwater Easy to Read Instructions Essential to Monitoring Proper Ionic Balance About Fritz Liquid Test Kits - Calcium Calcium (Ca2+) is vital to man

Single Frag Rack is designed to help keep a single frag up and displayed with its magnet attachment Size: 2"x2" Square - 2 Tall

Brazilian Seahorses are an Atlantic species with a wide range. They occur from as far north the Carolinas, Bermuda and south to Brazil. They are known in the hobby as Brazilian Seahorses because in...

Premium plastic acrylic-safe algae scraper replacement blade for marine and freshwater aquariums. Available with Cyan Plastic Blade (AquaBlade P) or Stainless Steel Blade (AquaBlade M). Backwards...

Featuring powerful LED arrays for maximum performance. Promotes growth while enhancing color in corals, invertebrates and fish. Available in a wide variety of configurations to suit marine/reef...

Fauna Marin Dino X: The Ultimate Solution for Dinoflagellates and Nuisance Algae Reclaim the beauty of your reef tank with

Automate Your Aquarium Lighting with the Illumagic Pixel/Vitamini Scheduler Unlock the full potential of your Illumagic Pixel and Vitamini LED lights with this intuitive and easy-to-use 24-hour...

Shark MINI SKIM effectively filters surface water, quickly and accurately freeing it from floating objects such as plant debris, dust and those annoying molds that can cause a reduction in the...

Single Frag Pop Up Stand is designed to help keep a single frag up off the sand bed and to present it for display.  When placing frags on the sand, fish and critters often disturb the frag with sand...

The Turbelle stream 6105 ORCA is the ultimate flow solution for larger reef aquariums. This professional-grade bundle combines the raw power and extreme efficiency of the Tunze 6105 Stream Pump

EHEIM reeflexUV reduces microorganisms in the water and eliminates torbidity more efficiently than ever before.  EHEIM reeflexUV is yet another typical innovation from EHEIM: due to a built-in...

Bluehead Wrasse 3" - 4" in size. Bluehead Fairy Wrasse or Cirrhilabrus cyanopleura also known as Blue Scaled Fairy Wrasse, Yellow Flanked Fairy Wrasse, Purplehead Parrot Wrasse, or the Blue Sided...

This UPGRADED Rack has 3x Magnets that are DESIGNED to hold on 3/4" Glass! PREMIUM FRAG RACK - MEDIUM Holds up to 20 Frag Plugs Dimensions: 10" x 4" NEW FEATURES: Slip and Scratch...

The ORA German Blue Polyp Digitata is a round tipped, branching Montipora coral with short, bright blue polyps and golden yellow to white growth tips.  Requires intense light to maintain blue polyp...

Coarse Mesh Nets are ideal for general fish handling and our Fine Mesh Nets are perfect for delicate fish handling and skimming debris. Sizes: 4", 5", 6", 8", 10" and 12". Long handle Nets: 5"...

Nox-Ich is your answer to killing external parasites upon contact. It is especially effective against the common occurring parasite, ICH. Add just one drop per gallon to eliminate unwanted visitors...

Concentrated KH Buffer Supplement for All Marine Fish and Reef Aquaria Overview Alkalin 8.3P is a multi-component automatic buffer that regulates pH, unlike sodium carbonate its use makes for a...

The New Life Spectrum® line of positively buoyant floating pellets. The regular size pellets provide the nutrient density and water stability of a pellet while being an ideal substitute for flakes...

TargetFlow by Reef Engineer: The Ultimate 4-in-1 Precision Reef Tool Take full control of your aquatic ecosystem with the TargetFlow, the versatile precision tool designed built specifically for...

Your Tank’s Vitals, visible at a Glance. Upgrade your reef monitoring experience with the AvidAqua InSight—a modern, full-color touchscreen display designed exclusively for Neptune Systems Apex users

Designed to Be Added to the Nyos ION-B CA/MG+ Solution Trace Element Mixtures Based on Real Reef Tank Consumption Contains: Chromium, Iron, Cobalt, Copper, Manganese, Nickel, Vanadium,...

Professional ICP seawater laboratory analysis - ICP-OES is used to analyze over 35 chemical elements in the seawater sample.After the measurement, the user can call up the detailed analysis report on...

Red Sea’s Next-Gen Return Pump Integrated Flow Controller for Stand-Alone Operation Virtually Silent Performance 180° Rotating Outlet for Flexible Installation Inlet Flow Guide to Prevent Air...

Having adequate filters for a small size aquarium is crucial to keep the livestock healthy. With the new SHARK PRO NANO we are offering the best compact option with EXTRA flow and MAX filtration...

Protective carrying case designed to transport and store Apogee meters, sensors, and accessories. Please note, this case does not fit the AM-320 underwater wand. It will fit a AM-310 telescopic wand,...

2” disc with 20+ polyps The rich assorted colors of our Micronesian Zoanthids display a brilliant selection of greens, golds, reds and yellows. Our two-inch cement discs will have nearly complete...

If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Orange Rhodactis Mushrooms have fluorescent orange bumps, also called vesicles, protruding...

25mm-30mm Pipe to 3/4in Loc-Line™ Flex-Series Adapter 3/4in Loc-line & RFG Nozzle CompatibleAdd a 3/4in Loc-Line compatible or similar sized modular hose fitting almost anywhere Push-fit Flex...

A perfect compact solution for a quiet yet powerful return pump. Featuring a sealed DC motor and magnetic drive design, eFlux DC pumps provide up to 65% energy savings over traditional AC pumps and...