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Kalkwasser Powder Calcium Hydroxide (3.5 lbs) - ESV
ESV$27.99Calcium hydroxide is used to prepare limewater (kalkwasser) solutions that will maintain calcium concentrations at natural seawater levels. Kalkwasser solutions maintain calcium directly and carbonate alkalinity indirectly. However, its capacity to... -
Fishless Fuel Ammonia Solution (2 oz) - Fritz
Fritz Aquatics$4.23Establishing a healthy biological filter is essential to every aquatic system. Fritz Fishless Fuel eliminates the guesswork of dry ammonium chloride powders and other ammonia sources such as fish food or other organic materials. When using Fritz Fishless... -
Kalk+2 Kalkwasser Supplement w/Trace (450 gm - 1 lb) - Brightwell
Brightwell Aquatics$19.99Overview • Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc... -
PhosGuard Phosphate Remover (500 mL) - Seachem
Seachem$12.26PhosGuard is spherical. Its shape allows for maximum water flow through the media. Granular phosphate removers can become compacted, dramatically limiting their capacity to remove phosphate. If the media can’t come into contact with the water, it... -
C-Balance 2 Part Supplement (2 Gallon Set) 2x - 1 Gallon Bottles - Two Little Fishies
Two Little Fishies$47.51C-Balance® - Two Part Balanced Ionic Supplement of Calcium and Buffer for Marine Aquariums Manufactured by Two Little Fishies This two-part calcium and alkalinity maintenance system adjusts calcium, magnesium, and strontium ions to natural... -
CoralAmino Free Form Amino Acid Supplement (30 ml) - Brightwell
Brightwell Aquatics$17.73Free-Form Coral Amino Complex for all Corals & Their Allies Overview Complex of free-form amino acids in the same ratios found within tissues of stony corals. Beneficial to all corals (stony and soft), as well as solitary and colonial polyps... -
HI784-25 Marine Ammonia HC Checker Reagents (25 tests) - Hanna Instruments
Hanna Instruments$20.00HI784-25 Marine Ammonia Checker HC (Handheld Colorimeter) Reagents are high-quality reagents for use with the HI784 Marine Ammonia (ppm) Checker HC. Reagents are clearly marked with the lot number and expiration date on each packet for traceability... -
B-Ionic Magnesium (32 oz) - ESV
ESV$22.99Through the chemical process known as "ion-pairing" magnesium ion concentration influences the saturation point for calcium carbonate in solution. In general the further the magnesium concentration drops from natural seawater levels (1350 ppm) the more... -
Prime (2L) - Seachem
Seachem$57.46Prime® 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... -
3 Pack Triton ICP-OES Water Test w/Prepaid Shipping Label - Triton Labs
Triton$141.00Now Includes a Prepaid USPS First Class Shipping Label + Testing is Now Done in the USA! The results of this test provide you with the most detailed analysis of marine aquarium water you've ever seen, enabling you to understand exactly what's missing,... -
HI73127 Spare Electrode For Testers - Hanna Instruments
Hanna Instruments$64.00Spare tester electrode. Compatible with: HI 98129, and HI 98130 Combo multi-parameter testers, HI 98127 and HI 98128 pHep testers, and HI 98121 ORP tester. -
Flux RX up to 200g (4000 mg) Fluconazole - Blue Life USA
Blue Life USA$36.46Flux Rx is simple and effective with levels easily achieved and maintained quickly for effectiveness when Bryopsis or Green Hair Algae are present. How to prepare product: Turn off skimmer and discontinue using activated carbon and phosphate... -
MicroBacter START XLM 15x (250 ML - 8 oz) - Brightwell
Brightwell Aquatics$21.94Professional 15x strength live tank starter nitrifying bioculture for rapidly cycling new marine fish and reef aquaria and brackish aquariums, and for recovering from overcrowding or disasters where the bacteria bed has been damaged or... -
MA800 Padded Protective Case for MA871 MA887 MA884 Refractometer - Milwaukee
Milwaukee Instruments$20.00Hard carrying case for Digital Refractometers -
Reef Fusion "1" Two Part Calcium/Buffer System (2 L) - Seachem
Seachem$21.44Reef 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... -
HI7031L/C 1413 µS/cm Conductivity Standard (500 ml) Bottle - Hanna Instruments
Hanna Instruments$15.00HI7031L/C is a premium quality 1,413 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis. Hanna conductivity solutions have the lot number and expiration date... -
AcroPower Amino Acids for SPS Corals (250 ml) - Two Little Fishies
Two Little Fishies$14.08AcroPower supplies amino acids that corals need to build their skeletal architecture. Like other cnidaria, corals have a special ability to uptake dissolved amino acids across their entire surface. Closed system aquariums with protein skimming and other... -
Prime (250 mL) - Seachem
Seachem$9.64Prime® 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... -
Seawater Refractometer - Red Sea
Red Sea$74.99Main features of Red Sea’s Seawater Refractometer include:Directly reads the absolutesalinity ofseawaterat25°C/77 0F ( No need for seawater or temperature compensation factors)Specifically designed for the ionic content of seawater (NSW) for... -
Reef Foundation A - Calcium (CA) - (5 Liter / 1.32 Gal) - Red Sea
Red Sea$109.00Calcium+ Supplement Calcium and Strontium complex for balanced formation of the coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements... -
Alkalinity (KH) Test Kit - Elos
ELOS$17.99KH Alkalinity - Carbonate Hardness Water AnalysisAlkalinity is essentially a means of quantifying the stability of pH in a solution, such as aquarium water. It is a measure of the concentration of various negatively charged ionic compounds (anions) such... -
Reef ICP Test Total (90 Water Parameters) - Fauna Marin
Fauna Marin$39.99The Fauna Marin Reef ICP Total Test gives a quick, accurate, and easy overview of over 90 water values in reef aquariums. From macro elements to trace elements and pollutants, you get a complete overview with corresponding dosage and action... -
Coral Pro Sea Salt Mix Red BOX (Makes 160 Gallons) - Red Sea
Red Sea$79.99Red Sea’s Coral Pro Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Coral Pro Salt is ideal for reef aquariums, in particular for... -
HI70436M Deionized Water (230 ml) - Hanna
Hanna Instruments$12.00Deionized water for your research needs. Air-tight seal to ensure the quality of the solution. Marked with lot number and expiration date. -
Glass Cuvette Cleaning Solution (230 ml) HI93703-50 - Hanna Instruments
Hanna Instruments$28.00The glass cuvette is an important component of the optical system in all colorimetric and turbidimetric measurements. Light reaches the sample by first passing through the cuvette glass. Based on the sample, the light is absorbed, transmitted, or... -
Reef Foundation C Dry - Magnesium (MG) (1 KG) Powder - Red Sea
Red Sea$31.99Magnesium Supplement Magnesium supplement for balanced formation of coral skeleton It’s all in the balance Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.All of these elements need to be... -
Flux RX up to 100g (2000 mg) Fluconazole - Blue Life USA
Blue Life USA$28.04Flux Rx is simple and effective with levels easily achieved and maintained quickly for effectiveness when Bryopsis or Green Hair Algae are present. How to prepare product: Turn off skimmer and discontinue using activated carbon and phosphate... -
KH Carbonate Hardness Test Kit - API
API$8.98KH Carbonate Hardness Test Kit The API® KH Carbonate Hardness Test Kit tests fresh or saltwater aquariums for carbonate hardness (KH), and helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants... -
Reef Advantage Magnesium (1.2 kg) - Seachem
Seachem$14.18Severely depleted levels of magnesium (below 800 mg/L) can cause depressed pH levels and an inability to maintain proper magnesium levels. The most frequent causes of magnesium deficiency are use of kalkwasser, frequent overdosing of a carbonate... -
pH 10.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments
Hanna Instruments$14.39HI70010P is a premium quality pH 10.01 calibration buffer solution. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers... -
Salinity Refractometer Calibration Fluid, 53.0mS/1.026SG - American Marine
American Marine$8.9953.0 mS standardized fluid for calibrating the PINPOINT® Salinity Monitor with conversion chart -
HI774-11 Phosphate Ultra Low Checker® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$13.00The Phosphate Ultra Low Range Checker® HC Calibration Check Set provides a simple solution to validating the Phosphate Ultra Low Range Checker® HC - HI774 that has a range of 0.00 to 0.90 pp as phosphate. This high-quality set of standards is... -
Checktemp® Digital Thermometer (HI98501) - Hanna Instruments
Hanna Instruments$41.00The HI 98501 Checktemp® is a digital thermometer with stainless steel penetration probe. It delivers high accuracy temperature measurements over a wide temperature range without worrying about breakage or condensation. The Checktemp® offers NO... -
Reef BluePrint Isol8:MT - Minor & Trace Elements (60 mL) - Captiv8 Aquaculture
Captiv8 Aquaculture$15.99Parameter Value Iodide 52,840 ppm Molybdenum 9,983 ppm Nickel 444.300 ppm Zinc 371.400 ppm Manganese 259.900 ppm Copper 240.500 ppm Selenium 127.000... -
Safe Dry Water Conditioner (250 g) - SeaChem
Seachem$12.48Safe™ is the complete and concentrated dry conditioner for both fresh and salt water. Safe™ removes chlorine, chloramine and ammonia. Safe™ converts ammonia into a safe, non-toxic form that is readily removed by the tank’s... -
MC 720 PH Dosing Kit Controller & Pump - Milwaukee Instruments
Milwaukee Instruments$215.00Control the pH of your tank/reservoir automatically! The MC122 pH controller and dosing pump (MP810) provides fully automated pH control of aqueous solutions in hydroponic systems. It has been specifically designed to control the pH in mixing tanks for... -
Hanna HI700 Ammonia LR Checker HC (Freshwater) - Hanna Instruments
Hanna Instruments$63.95The Hanna Ammonia Low Range 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... -
ReMag Magnesium Media for Calcium Reactors (2.2 lbs) - Two Little Fishies
Two Little Fishies$21.41ReMag 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... -
Pocket Size TDS & Temperature Meter (TDS-4TMA) - HM Digital
HM Digital$22.45The TDS-4TMA handheld meter is ideal for testing TDS and salt levels of freshwater aquariums and ponds. It can also be used for testing water filtration and purification systems, such as RO and DI, to know when to changes filters and membranes... -
Silicate Test Kit (60 Tests) - Salifert
Salifert$16.21High levels of silicate can lead to diatom blooms. Some tap water and even RO water may have silicates and should be monitored with a Silicate Test Kit. This kit includes a test vial, syringe, three reagents and a color chart. It offers two methods of...