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Overview Achieve total clarity over your aquarium's water chemistry with lab-grade precision. Maintaining a thriving reef aquarium demands absolute control over trace elements, macroelements, and...

"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 Nyos® ION-B method is a state-of-the-art dosing system for modern reef tanks. The system is simple and intuitive and can be individually adapted to the needs of your aquarium. With just two...

Kamoer FX-STP 3 Continuous-Duty Calcium Reactor Dosing Pump The Kamoer FX-STP 3 is a third-generation continuous-duty peristaltic pump designed specifically for calcium reactor applications...

Transform your existing NYOS Quantum® skimmer into a smart, autonomous, and fully controllable device. This upgrade kit integrates seamlessly with Mobius™ (Ecotech Marine) and Apex Fusion (Neptune...

The TUNZE® Turbelle® stream 6255 eco is a powerful, electronically controllable circulation pump designed for large-scale aquariums, offering high flow rates and modern control features. This model...

Sicce AQUA FILTRA 20 Hang-On-Back Filter Compact Power and Whisper-Quiet Filtration for Small Aquariums Bring the world-renowned quality of Italian engineering to your smaller aquarium with the...

Professional ICP seawater laboratory analysis.  The chemical elements of the seawater sample are analyzed using ICP-OES. In addition, other measurement methods are used to analyze other important...

All-natural coral frag dip for recovery of live coral frags and regeneration of cut coral tissue Overview All-Natural, herbal frag dip to accelerate coral recovery and growth after fragging...

The ORA Picasso Percula is the premier benchmark for pattern, beauty and quality. In addition to their wildly surreal stripe designs, this particular variety features dramatic black coloration in...

Cyanoacrylate Adhesive Gel Fast-Drying, Easy-To-Use Formula Perfect for both Freshwater and Saltwater Aquariums Works Underwater Fritz aquaADHERE is a fast-drying cyanoacrylate adhesive gel...

*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* This is the latest model GEO Kalkwasser Reactor GEN3. We have made many changes over...

All-In-One Rimless Glass Cube Aquarium IceCap All-In-One Aquariums are handmade with high-quality materials. Front and side viewing panels feature Low-Iron glass for optimal clarity and help...

10 g portion This dramatic macroalgae glows with fiery red colors tipped in fluorescent orange. Dragons Breath tends to grow slower than most other macroalgae species and does best when tumbled with...

PREMIUM FRAG RACK - MEDIUM Holds up to 20 Frag Plugs Dimensions: 10" x 4" NEW FEATURES: Slip and Scratch Resistant Magnet Bar Removable Magnet Bar - Swappable with Photo Boxes, Mushroom...

Dimensions:  6in x 2in OR 1.25in   Includes: 2 Swappable Rack Options, 4 Hole or 8 Hole Thumbscrews Strong Magnet Bar   The Slimline Small Frag Rack [4 + 8 Hole] is a great set up for...

It is impossible to maintain a healthy, vibrant marine aquarium without also maintaining the proper levels of calcium and alkalinity. FRITZ RPM CALCIUM/BUFFER SYSTEM allows aquarists to maintain...

The Pipe Clamp Mounting Hardware for Abyzz AFC150 Flow Pump fits a round tube with a diameter of 1 1/4in (40mm).   Hardware Includes: The clamp is made of high-quality black PVC Titanium...

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...

Lifegard Aquatics introduces the Pro-MAX™ UV Sterilizer, featuring a patent-pending, flow-through design with less restrictive angled inlet and outlet ports requiring less plumbing. This unique...

The innovative Abyzz Flow Cannon AFC150 with its high-end design including a titanium rotor unit, titanium mounting frame, and carbon fiber parts consists of the pump itself and a powerful and...

Carbon-PLUS™ is mix of Carbon-PURE and Phos-Eliminator™ that use adsorption and ion-exchange to remove organics, colors, smells, phosphates and silicates as well as metals and acids. Use 1 cup (240...

Rimless Flat Panel Reef-building made easy The new JBJ Riml

Keep Your Reef’s Water Level & Salinity Locked In With Solid-State Digital Precision Maintain rock-solid salinity and seamless water-level management with the Red Sea ReefSense ATO Sensor. Designed...

The Nyos® ION-B method is a state-of-the-art dosing system for modern reef tanks. The system is simple and intuitive and can be individually adapted to the needs of your aquarium. With just two...

Small Blonde Naso Tang (Naso elegans) *Photo is a representation of the fish you will receive.* The Blonde Naso Tang (Naso elegans), also commonly known as the Lipstick Tang or Oranges

Eliminate smelly skimmate build-ups and prevent skimmer overflows with this 3-in-one device. It collects large amounts of skimmate, controls strong odors, and incorporates a fail-safe mechanism to...

PolypPower is a blend of dried zooplankton developed by Julian Spring to be an ideal food for all corals, whether photosynthetic or non-photosynthetic. It is also an excellent food for all filter...

The Double Hole Frag Rack fits just about anywhere! It is perfect for adding just a bit more space to house corals without unsightly distractions. Holds plugs up to 1.5in with stems up to 0.5in...

MarcoRocks Aquascaper's Choice consists of 3"- 6" single wafer pieces of our Shelf Rock, perfect for creating gravity-defying HNSA scapes. We recommend building on top of MR Foundation Rock. For...

*******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Classic CR818 GEN 3 will hold 24 pounds of large grain media and is well suited...

Originally from the vibrantly colored reefs of Australia, this beautiful Acropora grows outward with branches of teal green tipped with soft pink. Gorgeous under the warmer spectrums of our sunlit...

LED ONLY - No Controller or Wireless Remote High output saltwater reef lighting systems include wireless remote control, IR light & pump controller, IC light manifold HUB 12VDC power supply and...

This UPGRADED Rack has 3x Magnets that are DESIGNED to hold on 3/4" Glass! The Slimline rack is perfect for those tight spaces, or when you don't want to have too much of an eye grabber of a rack...

The ORA Easter Egg Chalice is a large polyp stony coral from the genus Oxypora. It’s a showstopper with ultra pink tissue sprinkled with bright yellow oral disks. This hardy and fast growing coral...

Replacement Blades for Two Little Fishies Algaescrape

Aqueon Replacement Filter Cartridges are dual-sided, featuring dense-floss with over 25% more activated carbon than the leading brands. These patented cartridges were designed to ensure even...

Waste-Away dissolves sludge and dirt in your freshwater aquarium! Waste-Away is a unique combination of bacteria that attack and dissolve organic wastes in the aquarium quickly. Even with proper...

Bio-Fuge Sumps - A simple rimless sump for any modern aquarium. - Bashsea's Bio-Fuge Sumps are the only fully featured rimless sump on the market.  Our bold look and pure build quality & strength is...