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On Sale 20%
Digital Refractometer for Seawater Analysis (HI96822) - Hanna Instruments
Hanna Instruments$249.99$199.99The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per... -
On Sale 15%
Reef Complete (500 mL) - Seachem
Seachem$11.33$9.63Reef Complete® is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are essential to all coral growth. If either... -
On Sale 15%
MW500 Standard Portable ORP Meter - Milwaukee Instruments
Milwaukee Instruments$109.00$92.65Standard portable meters with no frills! Milwaukee’s low cost durable meters for quick and reliable measurements. Milwaukee’s Standard meters are manufactured to be easy to use, practical and accurate. Ideal for the classroom, laboratory... -
On Sale 15%
ATC Seawater Refractometer - DD Aquarium Solutions
D-D Aquatics$69.99$59.49Almost all, if not all, of the refractometers currently available to the aquarium hobby are designed for measuring saltwater (sodium chloride or brine solution) and not true ‘seawater’. Although seawater is mostly sodium chloride it also... -
On Sale 15%
NeoPhos - Balanced Phosphorus Supplement (2 L) - Brightwell
Brightwell Aquatics$25.51$21.68Balanced Phosphorus Source for Phosphorus-Limited, Low-Nutrient Reef Aquaria Used in conjunction with MICROBACTER7 and REEF BIOFUEL or KATALYST, enables natural nitrogen uptake to take place in systems with inadequate phosphorus... -
On Sale 15%
COLORS 200% Coral Amino Acids (50 ml) - Polyplab
PolypLab$49.99$42.49Polyplab Colors is ultra pure Amino Acids designed for the most demanding coral growers. User discretion is advised, do not overdose. 1 Dropper or 5x Drops per 100 Gallons of water volume daily. Refrigerate after opening. It is... -
On Sale 15%
Clarity (500 ML) - Seachem
Seachem$16.71$14.20Clarity™ is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both reef and plant safe. Clarity™ is the only clarifier on the market that does it all! Clarity™ will clear... -
On Sale 12%
Phosphate Marine Test Kit - Red Sea
Red Sea$28.99$25.51Phosphate Test Kit Accurate measurement of Phosphate in marine aquariums PO4 Red Sea’s colorimetric Phosphate test kit provides a quick and reliable measurement of Phosphate in your aquarium to an accuracy of 0.1ppm PO4. This test kit, in... -
On Sale 15%
Ammonium Chloride for Fishless Cycling - Dr Tim's (8 oz)
Dr Tim's Aquatics$11.99$10.19This bottle of reagent grade ammonium chloride is for use when fishless cycling. Concentration is 50 mg/L of total ammonia-nitrogen (TAN). Dose 4 drops per gallon of aquarium water. Use with One and Only Nitrifying Bacteria. Simple, easy to... -
On Sale 15%
Complete Water Conditioner Dechlorinator (16 oz) - Fritz
Fritz Aquatics$15.99$13.59Fritz Complete is a concentrated, one- step, full-spectrum water conditioner that detoxifies chlorine, chloramine, ammonia, nitrite and nitrate. Safe to use in fresh and saltwater, including reef and planted aquariums. Use when setting up new aquaria,... -
On Sale 15%
MW600 Dissolved Oxygen Meter - Milwaukee Instruments
Milwaukee Instruments$208.00$176.80Milwaukee MW600 LED Economy Portable Dissolved Oxygen Meter with 2 Point Manual Calibration, 0.0 - 19.0 mg/L, 0.1 mg/L Resolution, +/-1.5 percent Accuracy, 100 Percent Saturation Range The Milwaukee MW600 is a portable dissolved oxygen (DO) meter for... -
On Sale 15%
Reef Code B Balanced Calcium & Alkalinity System Part B 2 L - Brightwell Aquatics
Brightwell Aquatics$28.45$24.18Overview The carbonate-bearing component of a two-part method for dosing calcium and carbonates (the substances largely responsible for increasing alkalinity (”buffering capacity”)) in the same ratio as that found in natural seawater... -
On Sale 12%
Phosphate Pro Test Kit (PO4) - 100 Tests - Red Sea
Red Sea$54.99$48.39Red Sea’s Phosphate Pro Test Kit is an advanced colorimetric test with comparator, measuring the level of phosphate in your reef aquarium to an exceptionally high accuracy of 0.02ppm PO4. Phosphate Pro Test Kit, when used in conjunction with... -
On Sale 20%
Reef Salt Mix 200 Gallon (5 x 5kg Box) - Aquaforest
Aquaforest$80.90$64.72Aquaforest Reef Salt is a synthetic marine salt designed specifically for aquacultured corals. The formula contains micro and macro nutrients necessary for proper coral growth and pigmentation, along with amino acids and Vitamin C for immune support... -
On Sale 15%
PINPOINT pH Monitor - American Marine
American Marine$89.99$76.49The PINPOINT® pH Monitoris in use by thousands of customers worldwide. This affordable unit remains the only full-time pH monitor with .01 resolution. The PINPOINT® pH Monitor is sold complete with probe and calibration fluids (9 volt battery not... -
On Sale 15%
Aiptasia Rx (0.5 oz) Removes Aiptasia & Majano Anemones - Blue Life USA
Blue Life USA$12.62$10.73Aiptasia Rx is a simple, effective and rapid solution for treating Aiptasia and Majano anemones. This product yields results within minutes of application. The dense solution sticks to Aiptasia, sealing the mouth to ensure planulas are not released... -
Reef BluePrint Isol8:Se - Selenium (60 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$11.99Parameter Selenium Value 250 ppm Characteristics Required by photoautotrophs (including zooxanthellae) for photosynthesis and nitrogen assimilation (nitrate reduction, nitrogen fixation) See 'Application'... -
On Sale 15%
Calcion - Liquid Calcium Supplement (2L) - Brightwell
Brightwell Aquatics$40.64$34.54Concentrated Calcium Supplement for All Marine Fish & Reef Aquaria Overview Highly-concentrated ionic calcium solution. Increases the concentration of calcium in marine aquarium water to provide coralsand other reef-building invertebrates with... -
On Sale 15%
Reef Code A Balanced Calcium & Alkalinity System Part A 2 L - Brightwell Aquatics
Brightwell Aquatics$28.45$24.18Reef Cõde A Sizes 250 ml, 500 ml, 2 L, 20 L Overview • The calcium-bearing component of a two-part method for dosing calcium and carbonates (the substances largely responsible for increasing alkalinity (”buffering capacity”)) in... -
On Sale 15%
ICP Mass Spec RODI Freshwater Aquarium Water Test (50+ Elements) - ICP Analysis
ICP Analysis$21.95$18.66This test is designed to measure freshwater, specifically your source water or RODI water so you know what is going into your tank before you make it salty. We will test over 50 elements down to ppt, parts per trillion. There is not any... -
On Sale 15%
Calcion P - Dry Calcium Supplement (800g) - Brightwell
Brightwell Aquatics$23.58$20.04Calcium Supplement for All Marine Fish & Reef Aquaria Overview High-purity powdered calcium. Increases the concentration of calcium in marine aquarium water to provide corals andother reef-building invertebrates with one of the most important... -
On Sale 15%
Oxygen (O2) Ultra Test Kit - Salifert
Salifert$19.99$16.99Salifert Oxygen Profi-Test Corals and marine fish require very high levels of oxygen concentration because of the low solubility of oxygen in salt water so it is very important to regularly test the level of oxygen present. The Salifert Oxygen Profi-Test... -
Reef BluePrint Isol8:V - Vanadium (60 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$11.99Parameter Vanadium Value 1,000 ppm Characteristics Required by photoautotrophs (including zooxanthellae) for photosynthesis and nitrogen assimilation (nitrate reduction, nitrogen fixation) See 'Application'... -
On Sale 15%
NeoNitro (4 L) - Brightwell
Brightwell Aquatics$44.99$38.24Balanced Nitrogen Source for Nitrogen-Limited, Low-Nutrient Reef Aquaria Overview Used in conjunction with MICROBACTER7 and REEF BIOFUEL or KATALYST, enablesnatural phosphorus uptake to take place in systems with inadequate nitrogen content,lowering... -
On Sale 15%
ReMag Magnesium Media for Calcium Reactors (8.8 lbs) - Two Little Fishies
Two Little Fishies$73.10$62.14ReMag is a magnesium-rich natural stone sized to blend well with ReBorn and other calcium carbonate media for use in calcium reactors. ReMag makes maintaining the magnesium level in your reef a no-brainer. Simply use ReMag in a calcium reactor according... -
On Sale 15%
MC811US MAX pH/EC/Temp Monitor - Milwaukee
Milwaukee Instruments$199.00$169.15Why Guard when you can Monitor! The Milwaukee MC811 MAX pH/EC/Temp Monitor lets you monitor your pH/EC/Temp levels 24/7 automatically. RANGE: 0.0 - 12.0 pH | 0.00 to 5.00 mS/cm | 14.0°F to 140.0°F RESOLUTION: 0.1 pH | 0.01 mS/cm |... -
On Sale 15%
Alkalin8.3 - Liquid pH Buffer & Alkalinity KH -Builder (4L) - Brightwell
Brightwell Aquatics$49.20$41.82Concentrated 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 much more stable aquarium. Eliminates pH and KH... -
On Sale 15%
Boost pH+ Increaser (250 ml) - Brightwell
Brightwell Aquatics$7.99$6.79Boost pH+ High Range pH Increaser, raises pH only without increasing alkalinity or calcium (in tanks already having a proper dKH) High range pH increaser for all marine aquaria, Allows maintaining a pH of 8.3, 8.4 or 8.5 in difficult... -
On Sale 20%
HI713-11 Phosphate Low Range Checker® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$18.99$15.19The Phosphate Low Range Checker® HC Calibration Check Set - HI713-11 provides a simple solution to validating the Phosphate Low Range Checker® HC - HI713 in the range of 0.00 to 2.50 ppm (mg/L). This high-quality set of standards is... -
Freshwater Master Test Kit (pH, High Range pH, Ammonia, Nitrite, Nitrate) - API
API$35.98Liquid Test Kits - This kit tests tap water and aquarium water for five different parameters that affect the health of freshwater fish: pH, High Range pH, Ammonia, Nitrite and Nitrate. Highly accuate and economical. Unique, transparent dome... -
On Sale 15%
Prime (4L) - Seachem
Seachem$98.08$83.37Prime® 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... -
On Sale 15%
TURBOSTART 900 Saltwater 1 Gallon (128 Ounces) Live Nitrifying Bacteria - Fritz
Fritz Aquatics$297.49$252.87Live product. Keep refrigerated. Do not freeze. Refrigerated life is 4 months with a temperature Range of 34 - 50 degrees F. Use before expiration date on bottom of bottle. Shipping: Live Foods Ship on Select Days & Have a 100% Arrive Alive... -
On Sale 15%
Reef Carbonate (500 mL) - Seachem
Seachem$7.59$6.45Reef Carbonate™ is a concentrated (4,000 meq/L) optimized blend of carbonate and bicarbonate salts designed to restore and maintain alkalinity in the reef aquarium. Calcium and carbonates are essential to all coral growth. If either becomes... -
On Sale 20%
HI70031P 1413 20 ml (Single Pack) - Hanna Instruments
Hanna Instruments$1.60$1.28Technical SpecificationsMfr #: HI70031PItem: Calibration Solution Container: 20mLType: Electric ConductivityRange: 1413 uS/cm Container: 20mLProduct DescriptionCalibration PacketConcentration 1413 Microsiemens Per... -
Reef BluePrint Isol8:Fe - Iron (60 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$11.99Parameter 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%
Boost pH+ Increaser (2 L) - Brightwell
Brightwell Aquatics$45.99$39.09Boost pH+ High Range pH Increaser, raises pH only without increasing alkalinity or calcium (in tanks already having a proper dKH) High range pH increaser for all marine aquaria, Allows maintaining a pH of 8.3, 8.4 or 8.5 in difficult... -
On Sale 20%
Hanna Algae Control Kit (713 Phosphate, 781 Nitrate) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$135.98$108.78713 Checker The HI713 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate. Phosphate is a common food additive that enhances flavor and acts as a buffering agent. Important for growth and... -
Reef BluePrint Isol8:Sr - Strontium (60 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$11.99Parameter Strontium Value 100,000 ppm Characteristics Active Components: Strontium chloride, anhydrous, USP Basic Application 1 mL per 26.4 gallons (100 L) increases [Sr] by 1.00 ppm. 5 mL per... -
Reef BluePrint Isol8:K - Potassium (1006 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$22.99Parameter Potassium Value 100,000 ppm Characteristics Regular application intensifies green, blue, orange, and red pigmentation. Active Components: Potassium chloride, anhydrous, USP. Basic... -
On Sale 15%
Waste Away Time Release Gels Marine (50 Gallon) - Dr Tims Aquatics
Dr Tim's Aquatics$16.35$13.90The gels are full of our Waste-Away Bacteria that are automatically and continuously released into your aquarium to consume nutrients and break down fish waste; keeping your tank clean and water clear. REEF SAFE. “Gets into the nooks and crannies...