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On Sale 15%
On Sale 15%Ultra Pure Water (UPW) Tester (HI98309) - Hanna Instruments
Hanna Instruments$109.99$93.49The Hanna Instruments HI98309 is a specialized, high-precision pocket tester designed specifically for monitoring the purity of deionized, distilled, and ultra-pure water. As the first pure water tester to measure in 1/1000ths of micro-Siemens... -
On Sale 15%
On Sale 15%Low Range pH/Conductivity/TDS Tester (HI98129) - Hanna Instruments
Hanna Instruments$224.99$191.24Take the guesswork out of water testing with the Hanna Instruments HI98129, the industry-standard "Combo" tester. Engineered for professionals in hydroponics, aquaculture, water treatment, and laboratory research, this 4-in-1 pocket meter provides... -
On Sale 15%
On Sale 15%Reef Code A Balanced Calcium & Alkalinity System Part A (250mL) - Brightwell Aquatics
Brightwell Aquatics$8.64$7.34Balanced Calcium & Alkalinity System for All Marine Fish & Reef Aquaria Overview The calcium-bearing component of a two-part method for dosing calcium andcarbonates (the substances largely responsible for increasing... -
On Sale 15%
On Sale 15%Potassium (K) (1000 g) Powder - Triton
Triton$32.00$27.20Potassium macro element seawater supplement. Potassium is an important element that naturally occurs in seawater. Beneficial for SPS coral colour and bacterial environment. When used in conjunction with TRITON Lab ICP testing aquarists are now... -
ECO Reef Solution (1 Gallon) - EcoSystem Aquarium
EcoSystems Aquarium$140.99• Increased polyp extension in corals • Increases coloration in both fish and corals • Increases appetite in fish Description: Reef Solution is an all-natural product. The multiple minerals and multi-vitamins contained in Reef Solution... -
On Sale 15%
On Sale 15%Nitrogen (NO) Beta (100 ml) - Triton
Triton$32.00$27.20Organic/Inorganic Nitrogen Compounds for Reef AquariumsHelps creating Nutrient levels according to TRITON RATIO -
On Sale 15%
On Sale 15%Freshwater Clear-Up (16 oz) 960 Gallons - Dr Tim's Aquatics
Dr Tim's Aquatics$34.89$29.66CLEAR-UP NATURAL WATER CLARIFIER -- H2O-PURE Choose the size best suited for your system:2 oz bottle treats 120 gallons (454 liters)4oz bottle treats 240 gallons (908 liters)8 oz bottle treats 480 gallons (1,817 liters)16 oz bottle treats 960... -
Essentials Mixed Reef 20 Liter Set (Part 1 & 2) - ATI
ATI$169.95This ATI Essentials Mixed Reef 20-Liter Set is designed for the modern aquarium enthusiast looking to maintain high-level reef stability with maximum convenience. Engineered for systems that host a diverse range of corals, including SPS, LPS, and soft... -
Pro Reef Salt 2 kg (16 Gallon) - Tropic Marin
Tropic Marin$18.99Tropic Marin Pro-Reef Sea Salt At a Glance The Gold Standard for Modern Reef Keeping. Tropic Marin Pro-Reef is the premium, pharmaceutical-grade salt mix engineered specifically for reef aquariums that require ultra-stable alkalinity and elevated... -
On Sale 15%
On Sale 15%Granular Activated Clean Carbon (3.5 lbs, 1600 grams) - ESV
ESV$39.99$33.99Achieve crystal-clear water and a healthier aquatic environment with ESV Granular Activated Carbon (GAC). Recognized by professional reef keepers as one of the highest-quality chemical filtration media available, ESV GAC is specifically engineered to... -
Active Carb (500 ml) High Performance Steam Activated Carbon - NYOS
NYOS$14.99Experience professional-grade water clarity with Nyos Active Carb. This premium, steam-activated carbon is engineered specifically for the delicate environments of reef, marine, and freshwater aquariums. Unlike standard carbons that can leach... -
On Sale 15%
On Sale 15%RedoxIclean - Water Quality Restoration (16 oz - 500 ml) - Brightwell
Brightwell Aquatics$19.04$16.18Molecular-Level Water Quality Restoration for Marine & Freshwater Aquaria Is your aquarium suffering from a sudden spike in organic waste, "tea-colored" water, or a dip in ORP? Brightwell Aquatics RedoxIclean is a professional-grade water quality... -
Reef BluePrint Isol8:Fe - Iron (355 mL, 12 oz) - Captiv8 Aquaculture
Captiv8 Aquaculture$37.22Parameter Iron Value 10,000 ppm Characteristics Increases iron, arguably the most important trace element to photoautotrophs (including zooxanthellae), in recirculating seawater systems, particularly critical in those... -
On Sale 15%
On Sale 15%Fritzguard Water Conditioner (1 Gal) - Fritz Aquatics
Fritz Aquatics$84.99$72.24FritzGuard is a safe and effective pH buffered water conditioner that neutralizes toxic chlorine, chloramines and heavy metals found in tap water. FritzGuard promotes healing and reduces fish stress with Aloe Vera, Vitamin E, and provides necessary... -
On Sale 15%
On Sale 15%Vitamarin-C Supplement (2L) - Brightwell
Brightwell Aquatics$121.53$103.30Concentrated Vitamin-C Supplement for all Marine Fish & Reef Aquaria Overview Highly-concentrated vitamin-C solution. Buffered; will not impact pH when used as directed. Stronger than competing products. Vitamin-C is associated with improved... -
On Sale 15%
On Sale 15%Koralle-VM (250 mL) - Brightwell
Brightwell Aquatics$18.24$15.50Advanced Vitamin, Minor, & Trace Element Supllement for all Marine Fish & Reef Aquaria Overview Unique vitamin and minor and trace element complex for establishing and replacing substances important to marine invertebrates, including corals,... -
On Sale 15%
On Sale 15%REEF SHOT - Strontium (24 Shots, 16 oz) - ASF
ASF$20.50$17.43Many reef organisms synthesise calcium and strontium to form shells or skeleton from the seawater. Strontium Reef Shot is a quick and easy way to increase or maintain the optimum concentration of strontium in a reef aquarium; an essential role in... -
On Sale 15%
On Sale 15%Fritz RPM Liquid Magnesium Elements (5 Gallons) - Fritz
Fritz Aquatics$139.99$118.99Magnesium 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 maintaining magnesium. A proper magnesium level is also... -
Absolute Ocean 2 x 10 Liter Set (45 Gallons) Perfect Seawater Concentrate - ATI
ATI$69.95ATI Absolute Ocean in the 20.4-liter set is the ultimate high-volume seawater concentrate for serious reefers and large-scale systems. This 20x liquid concentrate provides a faster, cleaner, and more precise alternative to traditional synthetic salt... -
Essentials Mixed Reef #2 (2700 ml) - ATI
ATI$29.95This ATI Essentials SPS Reef set is a high-performance, two-part dosing system specifically engineered for dedicated Small Polyp Stony (SPS) coral environments. Designed to simplify the maintenance of ultra-low nutrient systems, this formula provides a... -
Essentials Mixed Reef #1 (2700 ml) - ATI
ATI$29.95This ATI Essentials SPS Reef set is a high-performance, two-part dosing system specifically engineered for dedicated Small Polyp Stony (SPS) coral environments. Designed to simplify the maintenance of ultra-low nutrient systems, this formula provides a... -
On Sale 15%
On Sale 15%Granular Activated Clean Carbon 5 Gallon Bucket (20 lbs) - ESV
ESV$169.99$144.49Achieve crystal-clear water and a healthier aquatic environment with ESV Granular Activated Carbon (GAC). Recognized by professional reef keepers as one of the highest-quality chemical filtration media available, ESV GAC is specifically engineered to... -
On Sale 15%
On Sale 15%Kalkwasser Powder Calcium Hydroxide (14 oz, 400 grams) - ESV
ESV$14.99$12.74Maintain a thriving reef ecosystem with the purity of ESV Kalkwasser. A cornerstone of marine aquarium care for decades, Calcium Hydroxide is a proven, economical method for maintaining both calcium concentrations and alkalinity in closed marine systems... -
Reef BluePrint Isol8:I - Iodine (355 mL, 12 oz) - Captiv8 Aquaculture
Captiv8 Aquaculture$57.09Parameter Iodide Value 100,000 ppm Characteristics Provides iodide (contains no iodine), required for development of chitin (exoskeletal material for shrimp and other crustaceans) and antioxidant activity critical... -
Reef BluePrint Isol8:B - Boron (1006 mL, 34 oz) - Captiv8 Aquaculture
Captiv8 Aquaculture$26.51Parameter Boron Value 100,000 ppm Characteristics Regular application intensifies red pigmentation and improves pH stability. Active Components: Potassium tetraborate, hydrated, USP. Basic... -
On Sale 15%
On Sale 15%pH+ Liquid pH Increaser (20L) - Brightwell
Brightwell Aquatics$331.76$282.00Increases pH in all Marine and Freshwater Aquaria Overview Increases pH in marine and reef aquaria. May be used to help increase pH in aquaria that have adequate alkalinity yet havechronically-depressed pH levels; while not intended to act as a... -
On Sale 15%
On Sale 15%Cuprion (60mL) - Brightwell
Brightwell Aquatics$10.41$8.85Description Concentrated ionic, non-chelated copper solution. Qualified professional aquarists use only. For use in fish-only aquaria. Not for use with scale-less fish or aquaria housing live plants or invertebrates. Made in the USA... -
On Sale 15%
On Sale 15%Cichlid Code (500mL) - Brightwell
Brightwell Aquatics$15.54$13.21Trace & Minor Elements for African Cichlids & Fishes of Lakes Victoria, Malawi, & Tanganyika Overview Unique complex that provides trace and minor elements in ratios found to be beneficial to cichlids and other fishes endemic to Lakes... -
On Sale 15%
On Sale 15%Blackwater (500mL) - Brightwell
Brightwell Aquatics$15.54$13.21Description Establishes similar water conditions to those found in blackwater rivers that is important to many aquarium fish and plants. Help simulate the onset of the rainy season for encouragement of fish spawning. Enhances the... -
On Sale 15%
On Sale 15%Alkalin-P 8.3 - Dry pH/KH Builder (44 lbs) - Brightwell
Brightwell Aquatics$358.14$304.42KH Buffer Powder for all Marine Fish and Reef Aquaria Overview Raises alkalinity, adjust pH to 8.3 Unlike single component KH products such as sodium carbonate, Alkalin 8.3P is a multi-component automatic buffer that regulates pH and its use makes... -
Reef BluePrint Isol8:Mg(SO)4 - Magnesium Sulfate (2.5 kg) - Captiv8 Aquaculture
Captiv8 Aquaculture$35.83Characteristics Active Components: Magnesium sulfate, heptahydrate, USP (≥99.75% purity) Basic Application See 'Application', below. Application Keep out of reach of children and unauthorized persons... -
On Sale 15%
On Sale 15%Freshwater ReFresh (4 oz) - Dr Tim's Aquatics
Dr Tim's Aquatics$18.69$15.89RE-FRESH FOR NATURAL FRESH SPARKLING WATER Choose the size best suited for your system:4oz bottle treats 240 gallons (908 liters)8 oz bottle treats 480 gallons (1,817 liters)16 oz bottle treats 960 gallons (3,634 liters)32 oz bottle treats 1,920 gallons... -
Reduce DOC (8 oz) - Microbial Marine
Microbial Marine$24.99Concept: MICROBIAL MARINE REDUCE DOC/ORGANICS is a blend of specialty coconut-based, low-dust, steam-activated carbon and macroporous adsorption resin. The inclusion of macroporous adsorption resin gives this product superior performance in removing... -
Reduce DOC (32 oz) - Microbial Marine
Microbial Marine$59.99Concept: MICROBIAL MARINE REDUCE DOC/ORGANICS is a blend of specialty coconut-based, low-dust, steam-activated carbon and macroporous adsorption resin. The inclusion of macroporous adsorption resin gives this product superior performance in removing... -
Reduce DOC (16 oz) - Microbial Marine
Microbial Marine$34.99Concept: MICROBIAL MARINE REDUCE DOC/ORGANICS is a blend of specialty coconut-based, low-dust, steam-activated carbon and macroporous adsorption resin. The inclusion of macroporous adsorption resin gives this product superior performance in removing... -
Nitrous (500 mL) - Microbial Marine
Microbial Marine$19.99Concept: MICROBIAL MARINE NITROUS is a full-spectrum nitrogen supplement. Corals have been shown to selectively uptake ammonium and urea as their primary nitrogen sources, rather than nitrate. Many studies have also demonstrated that nitrate addition... -
Easy Trace (500 mL) - Microbial Marine
Microbial Marine$24.99MICROBIAL MARINE EASY TRACE is a solution that contains 15 major and trace elements. These elements have been selected based on their relevance to coral health in scientific literature, as well as the success of large coral aquaculture facilities that... -
Absolute Ocean 2 x 2.700ml Set - Perfect Seawater Concentrate - ATI
ATI$29.95ATI Absolute Ocean is a revolutionary 20x seawater concentrate that completely redefines how reef keepers approach water changes and new tank setups. Unlike traditional synthetic salt mixes that require hours of mixing and aerating, Absolute Ocean is a... -
Essentials SPS Reef 20 Liter Set (Part 1 & 2) - ATI
ATI$149.95The ATI Essentials 2 x 10-Liter Set is a professional-grade, two-part dosing system designed for the comprehensive care of modern reef aquariums. Engineered to provide all the essential elements required by corals in a simple, highly concentrated format,... -
Essentials SPS Reef #2 (2700 ml) - ATI
ATI$26.95This ATI Essentials SPS #1 (KH) is a high-purity alkalinity concentrate designed specifically for high-demand Small Polyp Stony (SPS) coral systems. As the first component of the Essentials SPS professional dosing system, this formula focuses on maximum...

