-
On Sale 15%
(13 Elements) Sample ICP Mass Spec Saltwater Aquarium Water Test - ICP Analysis
ICP Analysis$14.95$12.71This is a 13 element sample test so you can check it out. The full version has 50+ elements. The full version test is the first Mass Spec test offered to the aquarium industry. It will test over 50 elements down to ppt, parts per trillion... -
On Sale 15%
AccuraSea Refractometer Calibration Solution (250 ml) - Two Little Fishies
Two Little Fishies$11.99$10.19Do you think it’s important to maintain salinity precisely? We’re with you. That’s why we created AccuraSea Seawater Reference Solution, the only calibration solution of its kind made from real seawater. It’s pure natural sea... -
On Sale 15%
NeoNitro (250 mL) - Brightwell
Brightwell Aquatics$6.49$5.52Balanced 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 25%
(OVERSTOCK) (Expires 11/2025) (HI781-25) Marine Low Range Nitrate Checker Reagents (25 Tests) - Hanna Instruments
Hanna Instruments$16.00$11.99The HI781-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their HI781 Marine Nitrate Low Range Colorimeter. These reagents follow a colorimetric method in which the reaction between... -
On Sale 15%
Iodine Concentrate (250 ml) - Two Little Fishies
Two Little Fishies$9.99$8.49Two Little Fishies Iodide and iodine supplement is made from potassium iodide and seaweed extracts. Use this supplement to provide an extra boost of this important element and observe the positive effects. Great for growing Xenia, other soft corals and... -
Reef BluePrint Isol8:Ca(OH)2 - Kalkwasser (2.5 kg) - Captiv8 Aquaculture
Captiv8 Aquaculture$34.99Calcium Hydroxide | "Kalkwasser" Characteristics Provides calcium. Increases pH. Kalkwasser application is an integral part of an effective pH-management and coral growth regimen in dedicated coral culture systems... -
Phosphate Pro Test Kit (PO4) - 100 Tests - Red Sea
Red Sea$54.99Red 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 15%
Alkalin-P 8.3 - Dry pH/KH Builder (1000 gm) - Brightwell
Brightwell Aquatics$17.60$14.96KH 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... -
HI755-11 Marine Alkalinity (ppm) Checker® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$13.00The Marine Alkalinity Checker® HC Calibration Check Set - HI755-11 provides a simple solution to validating the Marine Alkalinity Checker® HC - HI755 that has a range of 0 to 300 ppm CaCO3. This high-quality set of standards is... -
On Sale 15%
Pristine (500 ml) Bacterial Water Conditioner - Seachem
Seachem$19.23$16.35Pristine™ uses bio-augmentation, a non-chemical and natural method, to improve water quality. It provides bacteria that break down excess food, waste and detritus in freshwater and marine systems. It will also reduce excess nutrients (e.g. ammonia,... -
On Sale 15%
Kalkwasser Dry Powder Mix (500 gm - 1.1 lbs) - Two Little Fishies
Two Little Fishies$15.26$12.97Calcium Supplement Mix. Our pure source of Calcium Hydroxide makes the ideal solution for replenishing calcium and maintaining alkalinity, for corals, clams, and calcareous algae that build skeletons of calcium carbonate. It also helps maintain pH,... -
Phosphate Marine Test Kit - Red Sea
Red Sea$28.99Phosphate 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%
Garlic Guard (250 mL) - Seachem
Seachem$7.38$6.27GarlicGuard™ is an appetite/flavor enhancer for freshwater and saltwater fish. GarlicGuard™ will help renew the interest of poor or finicky eaters. GarlicGuard™ contains naturally derived garlic oil. GarlicGuard™ also contains... -
(HI740270) 10 ml Syringe with Luer Lock HI781 part - Hanna Instruments
Hanna Instruments$9.9910 ml Syringe with Luer Lock used in Hanna HI781 Nitrate Checker -
On Sale 15%
LITTLE ReBorn Calcium Reactor Media (8.8 lbs) - Two Little Fishies
Two Little Fishies$35.66$30.31Reborn® coarse aragonite media for calcium reactors is composed of fossil skeletons of reef building corals sustainably harvested from pristine sites in the Western Pacific. When dissolved, ReBorn replenishes calcium and carbonate alkalinity,... -
On Sale 15%
Alkalin8.3 - Liquid pH Buffer & Alkalinity KH -Builder (2L) - Brightwell
Brightwell Aquatics$25.35$21.55Concentrated 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... -
Sea Salt (25 kg - 200 Gallons) Box - Aquaforest
Aquaforest$82.39Synthetic marine salt for aquariums with fish and less delicate corals and invertebrates. When setting up new aquariums it is recommended that the first animals are placed no sooner than 10-14 days after filling the aquarium. After dissolving the salt,... -
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... -
Graduated Pipette - 100 µL (HI731339P) - Hanna Instruments
Hanna Instruments$22.00The HI731339P is a volumetric pipette designed to measure and transfer exactly 100 µL of solution to a cuvette. To obtain the highest accuracy and precision from the HI758 marine calcium Checker it is necessary to add exactly 100 µL of... -
HI721 Iron Checker - Hanna Instruments
Hanna Instruments$63.95The Hanna Iron Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional... -
On Sale 15%
ATC Seawater Refractometer - DD Aquarium Solutions
All Misc Brands$54.99$46.74Almost 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... -
High Range pH Test Kit (160 Tests) - API
API$9.48High Range pH Test Kit The API® High Range pH Test Kit measures pH changes in marine aquariums, aquariums with African Cichlids, and very alkaline tap water. The API® High Range pH Test Kit reads the pH of water within the high range of 7.4... -
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... -
Reef Crystals Salt Mix Bucket (Makes 160 Gallons) - Instant Ocean
Instant Ocean$81.99Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals contains essential ocean reef elements in concentrations greater than those found in natural sea water. Extra Calcium to help ensure the... -
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... -
HI70031P 1413 20 ml (Single Pack) - Hanna Instruments
Hanna Instruments$1.49Technical SpecificationsMfr #: HI70031PItem: Calibration Solution Container: 20mLType: Electric ConductivityRange: 1413 uS/cm Container: 20mLProduct DescriptionCalibration PacketConcentration 1413 Microsiemens Per... -
On Sale 15%
Marine (pH) Test Kit - Elos
ELOS$16.50$14.03The pH-value or acid value indicates how acidic or alkaline water is. It is a measure of the concentration of the acidic or alkaline components in a hydrous solution. Pure water will react neutral and has a pH-value of 7. If the acidic components are... -
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%
Stability (100 ML) - Seachem
Seachem$4.35$3.70Stability® will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome". Stability® is formulated specifically for the aquarium and contains a... -
Zeo (1000 ml) - NYOS Aquatics
NYOS$14.99ZEO NYOS® ZEO is a high-quality, specially adapted zeolite mixture for seawater aquariums. Regular use reduces nitrate values permanently, simply and safely to the detection limit. Naturally pure, high-quality, free of additives, carrier... -
HI736-11 Phosphorus Ultra Low Checker® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$13.00The Phosphorus Ultra Low Range Checker® HC Calibration Check Set provides a simple solution to validating the Phosphorus Ultra Low Range Checker® HC - HI736 that has a range of 0 to 200 ppb as phosphorus. This high-quality set of standards is... -
HI70031P 1413 20 ml (25 Pack) - Hanna Instruments
Hanna Instruments$29.00Technical SpecificationsMfr #: HI70031PItem: Calibration Solution Container: 20mLType: Electric ConductivityRange: 1413 uS/cm Container: 20mLProduct DescriptionCalibration PacketConcentration 1413 Microsiemens Per... -
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... -
Foundation Skeletal Elements ABC+ (1 KG) - Red Sea
Red Sea$31.99Red Sea’s Reef Foundation ABC+ is a uniquely formulated powder supplement containing all of the elements of Foundation A, B & C, plus Red Sea’s Coral Colors A & B (potassium, boron, iodine & bromine) formulated in the exact ratio... -
On Sale 15%
Reef Fusion "2" Two Part Calcium/Buffer System (4 L) - Seachem
Seachem$32.33$27.48Reef Fusion 1™ and Reef Fusion 2™ are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1™ provides calcium, while Reef Fusion 2™ provides alkalinity. When used together, the Reef... -
Reef BluePrint Isol8:Ca(OH)2 - Kalkwasser (1.0 kg) - Captiv8 Aquaculture
Captiv8 Aquaculture$18.99Calcium Hydroxide | "Kalkwasser" Characteristics Provides calcium. Increases pH. Kalkwasser application is an integral part of an effective pH-management and coral growth regimen in dedicated coral culture systems... -
On Sale 15%
Magnesion - Liquid Magnesium Supplement 2L - Brightwell
Brightwell Aquatics$29.99$25.49Concentrated Magnesium Supplement for All Marine Fish & Reef Aquaria Overview Highly-concentrated ionic magnesium solution. Provides magnesium, which helps regulate the balance between calcium andcarbonates in aquarium water, and is a... -
K+ Elements Pro Coral Trace 1 (200 ml) - Tropic Marin
Tropic Marin$13.32Tropic Marin® K+ Elements contains a selection of essential cationic trace elements for the promotion of growth and the natural coloring of the corals. Trace elements are natural minerals which are needed by all aquarium inhabitants to... -
Copper Test Kit (90 Tests) - API
API$12.48Copper Test Kit Copper – a treatment for many parasitic infections – must be monitored in an aquarium or a pond. The copper level can drop too low for the treatment to be effective, or can increase to a point that is detrimental to fish... -
HI717-25 Phosphate High Range Checker Reagents (40 Tests) - Hanna Instruments
Hanna Instruments$10.00The HI717-25 are the replacement reagents for the HI717 Phosphate High Range Checker® HC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet...