Chemistry

Water chemistry is one of the most important engines of the aquarium. Chemistry governs every factor inside the aquarium & directly effects the inhabitants.

Sub Categories

HI755-26 HI772-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments

$13.00

This reagent works with both the 755 & 772 Hanna checker.  It may come with the tag 755-26 or 772-26, both reagents work with both checkers. Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample,...

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Fritz Aquatics

FritzPRO R.P.M. Salt Mix Box (55 lbs - Makes 200 Gallons) - Fritz Aquatics

$72.24

Fritz ProAquatics Reef Pro Mix (RPM) is manufactured using only the highest quality raw materials. Formulated by researchers and marine scientists, RPM contains all of the necessary major and minor elements of natural sea water that are utilized by...

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Hanna Instruments

HI713-25 Phosphate Low Range Checker Reagent (25 Tests) - Hanna Instruments

$13.00

Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read. Includes reagents for 25x tests. The Hanna...

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Hanna Instruments

HI782-25 Nitrate High Range Reagents (25 tests) - Hanna Instruments

$15.00

HI782-25 (25 tests) The HI782-25 are the replacement reagents for the HI782 Nitrate High Range Checker.  These high quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration...

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Hanna Instruments

HI736-25 Phosphorus Ultra Low Range Marine Reagent (25 Tests) - Hanna Instruments

$13.00

The HI736-25 are the replacement reagents for the HI736 Phosphorus Ultra Low 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 for...

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Hanna Instruments

HI774-25 Ultra Low Range Phosphate Checker Reagents - Hanna Instruments

$13.00

Reagents for the HI774. Our HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a conversion but read directly in parts per million phosphates...

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Red Sea

Large Bucket Coral Pro Sea Salt Mix (Makes 175 Gallons) - Red Sea

$79.99

Red 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...

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Neptune Systems

Calibration Kit (ph 7.0, ph 10.0, Salinity 53000uS) - Neptune Systems

$6.85

Neptune Systems single-use pH calibration packets make calibrating your probes simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure.  This kit contains One each of PH 7, PH 10,...

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Hanna Instruments

HI758-26 Marine Calcium Checker Reagents (25 Tests) - Hanna Instruments

$24.00

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Fritz Aquatics

FritzPRO R.P.M. Redline HIGH ALK Salt Mix RED Box (55 lbs) - Fritz Aquatics

$72.24

Same great benefits from RPM's original formula, PLUS Higher alkalinity for increased SPS growth in higher nutrient systems! Complete Professional Marine Salt Mix for Reef or Fish Only Systems Contains All Essential Major, Minor & Trace...

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Out of Stock

Tropic Marin

(Germany) Pro Reef Salt Bucket (200 Gallon) - Tropic Marin

$113.87

The pharmaceutical grade sea salt especially for modern reef aquaria. Tropic Marin® PRO-REEF Sea Salt has been designed to meet the special requirements of reef aquariums with optimized concentrations of calcium and magnesium, which promote the...

Out of stock

Neptune Systems

Apex Conductivity/Salinity Calibration Solution 53000 uS - Neptune Systems

$2.95

Use this calibration solution to calibrate your Conductivity Probe and PM2 for salinity monitoring.

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Red Sea

Small Bucket Coral Pro Sea Salt Mix (Makes 55 Gallons) - Red Sea

$32.99

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Hanna Instruments

HI782 Marine Nitrate High Range Checker - Hanna Instruments

$63.95

The HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital read out, there is no more struggling to determine colors...

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Out of Stock

Red Sea

Coral Pro Salt Sack (55 lbs Makes 200 Gallons) - Red Sea

$79.99

Out of stock

Hanna Instruments

HI702-25 Copper High Range Checker® Reagents (25 Tests) - Hanna Instruments

$13.00

The HI702-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Copper High Range Checker® HC. These reagents follow the Bicinchoninate Method in which the reaction between...

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Hanna Instruments

HI98319 Salinity & Temperature Tester - Hanna

$79.99

We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and...

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Hanna Instruments

HI98103 Checker pH Tester with 0.1 pH Resolution - Hanna Instruments

$34.00

The HI98103 Checker pH tester has been designed with many advanced features while maintaining the look and feel of the original Checker. The redesigned Checker now offers automatic calibration to one or two points, automatic buffer recognition,...

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ESV

B-Ionic Calcium Buffer System (2 Gallon) Concentrated Refill - ESV

$38.99

Bionic Calcium Buffer is the original, unique, easy to use, two-component liquid supplement system. When using equal volumes of each component, the aquarist can easily maintain calcium and alkalinity levels with no mixing powders, disruption of ionic...

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Out of Stock

Red Sea

Reef Energy AB+ Plus Coral Nutrition (1000 ml) - Red Sea

$37.99

An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resilience, brighter colors, greater ease of use with automatic dosers, and minimal over skimming. Based on our long-term research, Reef Energy...

Out of stock

ATI

ATI ICP-OES Complete Water Test Kit (w/ Prepaid Shipping Label) - ATI

$44.95

This is the only ICP Test Kit currently on the market that includes the prepaid return shipping label to send the samples in.  Just pop it in the mail box. With the ARCOS II ICP-OES machine, we have chosen an analyser of the highest in its class...

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Red Sea

Reef Energy AB+ Plus Coral Nutrition (500 ml) - Red Sea

$25.99

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Hanna Instruments

HI772 Marine Alkalinity (dKH) Checker HC - Hanna Instruments

$63.95

The Hanna Marine Alkalinity (dKH) 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...

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Out of Stock

Fritz Aquatics

FritzPRO R.P.M. 4 Bag Salt Mix Box (4x Individual 13.75 lb Bags - Makes 200 Gallons) - Fritz Aquatics

$74.99

Box contains 4x 13.75 lb Individually Sealed Bags. Fritz ProAquatics Reef Pro Mix (RPM) is manufactured using only the highest quality raw materials. Formulated by researchers and marine scientists, RPM contains all of the necessary major and minor...

Out of stock

Salifert

Magnesium (MG) Test Kit - Salifert

$19.61

Magnesium is present in NSW in a fairly high concentration (1300 - 1400 mg/L). Magnesium is an essential part of chlorophyll, which is necessary for photosynthesis. Without photosynthesis plants, including algae and the corals, which we usually have in...

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Salifert

Nitrate (NO3) Test Kit - Salifert

$17.37

A too high nitrate concentration can result in unwanted algae-growth and these might irritate corals in their neighborhood. Nitrate as such also retards coral growth. The nitrate concentration in a proper functioning reef aquarium should...

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Hanna Instruments

HI781 Saltwater Nitrate Low Range Checker - Hanna Instruments

$63.95

Get accurate water testing results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This nitrate tester's compact design fits in your pocket or stores easily in...

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Fritz Aquatics

TURBOSTART 900 Saltwater (4 oz) up to 100 Gallon Tanks - Fritz

$25.49

Live 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...

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$Salinity Refractometer w/ Calibration Fluid - Generic$

All Misc Brands

Salinity Refractometer w/ Calibration Fluid - Generic

$29.95

It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentration (part per Thousand)...

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Triton

Triton ICP-OES Water Test w/Prepaid Shipping Label - Triton Labs

$49.00

Now 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,...

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Hanna Instruments

Hanna HI758 Marine Calcium Checker HC (Saltwater) - Hanna Instruments

$63.95

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Brightwell Aquatics

MicroBacter 7 Complete Bioculture for Marine & Freshwater (500ML - 16 oz) - Brightwell

$18.54

Complete Bioculture for Establishing Biological Filtration & Rapidly Improving Water Quality Overview Complex system of non-pathogenic aerobic and anaerobic microbes, as well as natural enzymes, specifically formulated to establish biological...

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Hanna Instruments

HI774 Ultra Low Range Phosphate Checker (Saltwater) - Hanna Instruments

$63.95

Our HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a conversion but read directly in parts per million phosphates compared to parts per...

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Red Sea

Blue Large Bucket Red Sea Salt 175 Gallon (Not Coral Pro) - Red Sea

$79.99

Now Available in an Easier to Ship Box - No More Broken Buckets with Salt Everywhere - https://www.saltwateraquarium.com/red-sea-salt-mix-blue-box-makes-160-gallons-red-sea/ Red Sea Salt contains biologically balanced, elevated levels of...

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Hanna Instruments

pH 7.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

$1.49

HI70007P is a premium quality pH 7.01 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 have...

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Seachem

Ammonia Alert - Seachem

$7.71

Ammonia Alert™ is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are...

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Salifert

Carbonate Hardness & Alkalinity (KH/ ALK) Test Kit - Salifert

$16.46

Calcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few other constituents are carbonate and bicarbonate. These two substances also have a major impact on the...

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Salifert

Calcium (Ca) Ultra Test Kit - Salifert

$18.81

Calcium is a major constituent of calcareous algae, skeletal material of hard corals and the skeletal needles of soft/leather corals. Calcium also fulfills many biological functions.Quite often a too low calcium concentration retards coral and calcareous...

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Hanna Instruments

Glass Cuvettes and Caps for Checker® HC Colorimeters - set of 2 (HI731315) - Hanna Instruments

$11.00

The HI731315 are spare glass cuvettes and plastic caps used with the HI7XX Checker® HC colorimeters. Each cuvette has a 10 ml level mark to measure the appropriate volume. The HI731315 includes 2 cuvettes and 2 caps. 10 ml level mark for...

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Red Sea

Reef Foundation Pro Multi Test Kit (Ca,Alk,Mg) Calcium, Magnesium & Alkalinity - Red Sea

$69.99

Red Sea’s Reef Foundation Pro Test Kit includes high accuracy titration tests for the accurate measurement of the elements calcium, magnesium and alkalinity (KH) which are the basic foundation elements of coral skeletons. All of these...

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Hanna Instruments

Hanna HI713 Phosphate Low Range Checker HC (Saltwater) - Hanna Instruments

$63.95

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Red Sea

MCP Test Kit Marine Master Care - Red Sea

$69.99

Easy-to-use tests for the accurate monitoring of all of the important parameters during the biological maturation of marine and reef aquariums NH3/NH4 | NO3 | NO2 | pH | KH Red Sea Marine Care Test Kit is Complete multi-test pack including all of...

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Out of Stock

Seachem

Reef Fusion Two Part System 1 & 2 Calcium and Carbonate Supplement (2 L) SeaChem

$40.86

Reef 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...

Out of stock

Hanna Instruments

Waterproof Pocket pH Tester with 0.1 Resolution - pHep® (HI98107) - Hanna Instruments

$48.00

The HI98107 pHep® is an easy-to-use pH water tester that makes monitoring water quality simple. This accurate pH tester features 0.1 resolution with automatic two-point calibration and temperature compensation in a single, portable, pocket device...

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American Marine

Pinpoint ORP (Redox) Calibration Fluid - American Marine

$4.95

Another American Marine first. ORP/REDOX calibration fluid. With a precise measurement of 400mV this calibration fluid is included with every PINPOINT® ORP Monitor and PINPOINT® ORP Controller. Occasional retesting with this fluid will keep your...

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Hanna Instruments

Electrode Storage Solution for pH/ORP (230 ml) HI70300M - Hanna Instruments

$13.00

HI70300M is a storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is necessary to store a pH electrode in a solution in order to keep the glass membrane of the pH...

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American Marine

PINPOINT pH Probe Lab Grade Double Junction - American Marine

$39.99

The PINPOINT® pH Electrode equals and exceeds lab quality by both specifcation and design.  The PINPOINT® pH Electrode has been designed as the most rugged, precise and full-featured probe offered to both the clinical lab and aquaculture...

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ICP Analysis

ICP Water Analysis Single Test - 33 Elements - ICP-Analysis

$29.95

ICP Test results are emailed directly to you 24 hours after the water sample is received!  Speed. ICP Test for the Following 33 Elements: Aluminum, Arsenic, Barium, Beryllium, Boron, Cadmium, Calcium, Cesium, Chlorine, Chromium, Cobalt,...

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Hanna Instruments

Electrode Cleaning Solution (230 ml) HI7061M - Hanna Instruments

$13.00

HI7061M is a general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hanna’s cleaning solutions eliminate...

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Hanna Instruments

(NEW REAGENTS) (HI783) Marine Magnesium Checker HC Handheld Colorimeter - Hanna Instruments

$63.95

THESE ARE THE NEWLY UPDATED REAGENTS.  Now 1x powder and 1x liquid.  The testing process is the same as Alkalinity HI772 with one second liquid reagent. The HI783 Marine Magnesium Checker HC is a handheld colorimeter that uses the Beer-...

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Hanna Instruments

PH Calibration Buffer (Combo Pack) 4.0, 7.0, 10.0 - Hanna Instruments

$5.75

HI70004P/H17007P/HI0010P are premium quality pH 4.01/7.01/10.01 calibration buffer solutions. 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...

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Red Sea

Red Sea Salt Blue Sack (55 lbs Makes 200 Gallons) - Red Sea

$79.99

This is NOT Coral Pro - This is the basic Red Sea Salt in a 200 Gallon Sack. Red Sea Salt contains moderately elevated and balanced levels of the foundation elements (Calcium, Magnesium, Bicarbonates) necessary for sustainable coral growth...

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Red Sea

Reef Foundation B - Alkalinity (KH) (1000 ml) Liquid - Red Sea

$26.99

The foundation elementsA successful coral reef aquarium depends on how well you maintain the water parameters which are the key to a stable coral environment.All of the elements found in natural seawater play a role in providing optimal water parameters,...

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Hanna Instruments

pH 10.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

$1.49

HI70010P 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...

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Hanna Instruments

Hanna HI736 Phosphorus Ultra Low Range Checker HC (Saltwater) - Hanna Instruments

$63.95

The HI736 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphorus in marine systems including reef tanks. Phosphorus is an important parameter to measure in aquaculture and aquariums; levels that...

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Hanna Instruments

Electrode Storage Solution for pH/ORP (500 mL) HI70300L - Hanna Instruments

$15.00

HI70300L is a storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is necessary to store a pH electrode in a solution in order to keep the glass membrane of the pH...

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American Marine

PINPOINT pH 7.0 Calibration Fluid (5 Pack)

$5.95

PINPOINT® High-Precision pH Calibration Fluids come in plastic envelope packets and are extremely accurate and field portable. Each packet contains ample fluid for calibration (about 30 ml). There is a free sample of these included with each...

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Hanna Instruments

35 ppt Salinity Calibration Solution Packs HI70024P (25 x 20 mL) - Hanna Instruments

$29.00

HI70024P is a premium quality 35.00 ppt salinity calibration solution that is NIST traceable and contained in portable single-use sachets. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring...

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Hanna Instruments

Checker Plus pH Tester (HI98100) Plus - Hanna Instruments

$48.00

The HI98100 Checker Plus is the next generation of the original Hanna Checker pH tester. The Checker is the most popular pH meter in the world with over 1 million meters used since its introduction in 1991. From students to researchers, the Checker has...

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JW Pet

Smart Temp Magnetic Thermometer - JW Pet

$5.95

JW Pet Company Smart temp Thermometer Aquarium Accessory Large : JW Fusion Smart Temp Thermometer features a unique magnetic system that securely holds the thermometer in place inside of the aquarium with a magnet on the outside of the glass. It ranges...

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Hanna Instruments

HI701-25 Free Chlorine Checker Reagent (25 Tests) - Hanna Instruments

$10.00

Get your replacement reagents for your HI701 Free Chlorine Checker® HC today. 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 for...

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Fritz Aquatics

FritzPRO R.P.M. Salt Mix Bucket (48 lbs - Makes 180 Gallons) - Fritz Aquatics

$72.24

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Hanna Instruments

Hanna Master Reef Test Kit (755 Alk, 758 Calcium, 713 Phosphate, 781 Nitrate) Checker HC (Saltwater) - Hanna Instruments

$255.80

755 Checker   The HI755 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity via PPM. Crucial in marine environments, alkalinity provides both the carbonate ion required for calcium...

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