-
Alkalinity KH Test Kit (100 Tests) - ASF
ASF$18.89This test kit is designed for both freshwater and saltwater aquariums, ponds, and turtle enclosures. The kit provides fast, easy, and accurate measurements. Each kit includes a micro-syringe to ensure accurate testing. Multiple tests are included in... -
Potassium Reef Test - Salifert
Salifert$18.81Salifert test kits have been trusted by discerning reefers for years for their ease of use and reliability. Many reefers will report loss of coloration in corals when potassium level start to drop below 360 ppm. Potassium levels in natural... -
(NEW) Calcium (Ca) Ultra Test Kit - Salifert
Salifert$18.81Calcium 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... -
(HI782-11) Marine Nitrate HIGH RANGE Certified Check Set - Hanna Instruments
Hanna Instruments$18.00The Marine Nitrate High Range Checker® HC Calibration Check Set - HI782-11 provides a simple solution to validating the Marine Nitrate High Range Checker® HC - HI782. This high-quality set of standards is manufactured in our... -
HI758-11 Marine Calcium CheckerĀ® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$18.00The Marine Calcium Checker® HC Calibration Check Set - HI758-11 provides a simple solution to validating the Marine Calcium Checker® HC - HI758 that has a range of 200 to 600 ppm calcium. This high-quality set of standards is... -
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... -
Nitrate (NO3) Test Kit - Salifert
Salifert$17.37A 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... -
(HI783-11) Marine Magnesium Certified Calibration Standard Kit
Hanna Instruments$17.00The HI783-11 Marine Magnesium Certified Standard Kit is used to validate the performance of the HI783 Marine Magnesium Checker HC. The kit includes one sealed cuvette with a zero-magnesium value and one cuvette that is tinted to a standard magnesium... -
Copper Test Kit (50 Tests) - Salifert
Salifert$16.97This test can be used to measure any ionic copper in your source water or to monitor copper levels during parasite treatments. The test kit includes a test cylinder and reagent, plus a color chart to measure the copper, accurate to 0.05 PPM. It can be... -
(HI783-25) Marine Magnesium Reagents - 25 Tests - Hanna Instruments
Hanna Instruments$16.50This is the new reagents set with 1x Powder, 1x Liquid. These Reagents are for use with the HI783 Marine Magnesium Checker. These high-quality reagents are manufactured at the Hanna state-of-the-art facility and are clearly marked with... -
Marine (pH) Test Kit - Elos
ELOS$16.50The 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... -
Carbonate Hardness & Alkalinity (KH/ ALK) Test Kit - Salifert
Salifert$16.46Calcium 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... -
Ammonia Test Kit (40 Tests) - ASF
ASF$16.39Ammonia test kit for both freshwater and marine aquariums. 40 tests, measures up to 5 mg/L Easy to use, high quality, European-made. -
MultiTest Copper (75 tests) Marine & Freshwater - Seachem
Seachem$16.31This kit measures copper (all types) to less than 0.01 mg/L in marine or freshwater. Uses a highly sensitive catalysis based procedure. MultiTest® Copper performs over 75 tests and contains a reference sample for validation. -
Ammonia & pH Alert Combo 2 Pack (1 Year) Freshwater - Seachem
Seachem$16.22No strips, no tests, just constant readings. Now Ammonia Alert and pH Alert come together! Ammonia Alert and pH Alert employ Seachem Sensor Technology; a sensor changes color reversibly to alert you to shifts in ammonia levels and shifts in pH... -
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... -
HI782-25 Nitrate High Range Reagents (25 tests) - Hanna Instruments
Hanna Instruments$16.00HI782-25 (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... -
(HI780-25) Marine pH Checker Reagents (100 Tests) - Hanna
Hanna Instruments$16.00The HI780-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine pH Checker® HC. These reagents follow the Phenol Red method in which the reagents produce a range of... -
(HI781-25) Marine Low Range Nitrate Checker Reagents (25 Tests) - Hanna Instruments
Hanna Instruments$16.00The 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... -
Apex Conductivity/Salinity Calibration Solution 53000 uS (5 Pack) - Neptune Systems
Neptune Systems$15.99Use this calibration solution to calibrate your Conductivity Probe and PM2 for salinity monitoring. (5 Pack) -
Ammonia Test Kit (130 Tests) - API
API$15.48Ammonia Test Kit The API® Ammonia Test Kit measures ammonia to help prevent fish loss, as ammonia is the number one stressor and killer of tropical fish. Ammonia is released into an aquarium in the forms of uneaten food, decaying organic matter, and... -
Microfiber Cloth for Wiping Cuvettes - 4 (HI731318) - Hanna Instruments
Hanna Instruments$15.00HI731318 are microfiber cloths for wiping the cuvettes used in Checker HC (HI700 series) handheld colorimeters, photometers (HI96000 portable series and HI83000 benchtop series) and turbidity meters. These cloths remove dirt, grease and fingerprints... -
HI755-26 HI772-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments
Hanna Instruments$15.00This 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,... -
Electrode Cleaning Solution (500 ml) HI7061L - Hanna Instruments
Hanna Instruments$15.00HI7061L 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... -
Electrode Storage Solution for pH/ORP (500 mL) HI70300L - Hanna Instruments
Hanna Instruments$15.00HI70300L 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... -
Phosphate Liquid Test Kit (Up to 150 Tests) - Fritz Aquatics
Fritz Aquatics$14.99East to Read Instructions Essential for a Healthy Tank Accurate in both Fresh and Saltwater About Fritz Liquid Test Kits - Phosphate Excess nutrients can lead to poor water quality very quickly. If not controlled, phosphate (PO4) can... -
Ammonia Liquid Test Kit (Up to 130 Tests) - Fritz Aquatics
Fritz Aquatics$14.99Accurate in both Fresh and Saltwater Must-Have for Every Aquarist Essential During New Tank Setup About Fritz Liquid Test Kits - Ammonia Ammonia is one of the most important parameters to monitor in aquariums because any amount can be... -
Nitrite (N02) Test Kit - Salifert
Salifert$14.99Features:Nitrite is a substance that is toxic to fish and invertebrates.It is a misconception that once a tank is through its cycle (first 3 or 4 weeks) that nitrite has vanished.Many nitrite test kits suffer from interference by amines (such as... -
Carbonate Hardness (Alk/KH) Reefer Test Kit 50 Tests - NYOS Aquatics
NYOS$14.99CARBONATE HARDNESS REEFER NYOS® REEFER test kits - taking measurements at the laboratory level at an attractive price Water properties as close to nature are the key for every aquarium's success. However, monitoring relevant parameters in seawater... -
Phosphate Test Kit (150 Tests) - API
API$14.98Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contributes to unsightly algae blooms. This kit tests phosphate levels from 0 to 10 ppm in... -
(13 Elements) Sample ICP Mass Spec Saltwater Aquarium Water Test - ICP Analysis
ICP Analysis$14.95This 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... -
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... -
pH 7.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments
Hanna Instruments$14.39HI70007P 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... -
pH 4.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments
Hanna Instruments$14.39HI70004P is a premium quality pH 4.01 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... -
Nitrite Test Kit (100 Tests) - ASF
ASF$14.09Nitrite test kit for both freshwater and marine aquariums. About 100 tests, measures up to 1 mg/L Easy to use, high quality, European-made. -
(HI740271) Filter Holder with Luer Lock HI781 part - Hanna Instruments
Hanna Instruments$14.00The HI740271 is a replacement filter holder with Luer lock (1 pc.) for use with the HI781 Low Range Marine Nitrate Checker. -
HI713-11 Phosphate Low Range CheckerĀ® HC Calibration Check Set - Hanna Instruments
Hanna Instruments$14.00The 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... -
HI-7030L Conductivity Solution, (500 mL) bottle - Hanna Instruments
$13.99Maximum accuracy is high on the agenda here at Hanna. Browse our Conductivity Calibration Solutions specifically produced for Conductivity meters and electrodes. Hanna conductivity electrodes can be calibrated in just a few minutes, wherever you are... -
Ammonia (NH3) Test Kit - Salifert
Salifert$13.99For Fresh and Saltwater Ammonia and ammonium are substances which should be converted rapidly into nitrite followed by nitrate and nitrogen gas.If this does not happen then the aquarium is not fully cycled or biological processes are not proceeding as... -
Calcium Test Kit - API
API$13.98Calcium Test Kit Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of encrusting algae need calcium to grow and remain healthy. Over time, calcium levels drop...