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Checktemp® 1 Digital Thermometer (HI98509) - Hanna Instruments
Hanna Instruments$43.00The Checktemp® 1 Digital Thermometer - HI98509 is a high-accuracy thermometer with a 1 m (3.3’) flexible, silicone cable connecting the meter and the stainless steel probe. The sharp-tip penetration probe easily lances semi-solid products... -
Magnesium Pro - High Accuracy Titration Test Kit (100 tests) - Red Sea
Red Sea$41.99Red Sea’s Magnesium Pro Test Kit is an advanced titration test, measuring the level of magnesium in your reef aquarium to an exceptionally high accuracy of 20 ppm.The Magnesium Pro Test test kit enables the accurate dosing of Red Sea’s Reef... -
Calcium Pro-High accuracy Titration Test Kit (75 tests) - Red Sea
Red Sea$41.99Red Sea’s Calcium Pro Test Kit is an advanced calcium titration test, measuring the level of calcium in your reef aquarium to an exceptionally high accuracy of 5 ppm. This test kit enables the accurate dosing of Red Sea’s Reef Foundation... -
KH/Alkalinity Pro-High Accuracy Titration Test kit (75 tests) - Red Sea
Red Sea$41.99Red Sea’s KH/Alkalinity Pro Test Kit is an advanced titration test, measuring the level of buffers in your reef aquarium to an exceptionally high accuracy of 0.05 meq/l (0.14 dKH).Red Sea’s Alkalinity Pro test kit enables the accurate dosing... -
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... -
On Sale 37%
(DAMAGED BOX) HI775 Marine Alkalinity Checker HC (Freshwater) - Hanna Instruments
Hanna Instruments$63.95$39.99The Hanna Freshwater Alkalinity 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... -
On Sale 20%
AF Test Pro Pack Basics Calcium, Alkalinity, Magnesium (Ca, KH, Mg) - AquaForest
Aquaforest$49.99$39.99The Aquaforest TestPro Pack includes drop tests to check levels of Ca, KH, and Mg in saltwater aquariums. Calcium, Alkalinity, and Magnesium are the most crucial parameters in a reef aquarium and should be monitored regularly. In order to ensure the... -
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... -
ICP Water Testing Analysis (1 Test) (w/ Prepaid Shipping Label) - Reef Labs
Reef Labs$39.95Testing is Performed in Bradenton FLORIDA USA! Kit includes a prepaid USPS Label. Looking for an accurate, comprehensive, fast, and easy way to test your aquarium? Then look no further! Reef Lab's ICP Water Analysis utilizes laboratory grade ICP... -
CA + MG Calcium/Magnesium AquaHome Precision Test Kit (50 Tests) - Fauna Marin
Fauna Marin$39.95The Fauna Marin CA + MG Test is very high-resolution and can determine the Calcium & Magnesium concentration with a particularly high accuracy in the low concentration range. The details: Measuring range CA: 300 - 489 mg/l Resolution (accuracy)... -
On Sale 15%
Salifert Core Alkalinity Calcium Magnesium Combo Test Kit - Salifert
Salifert$45.99$39.09Magnesium 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... -
HI50021P Calibration Check Solution for HI9813-6 20 mL (25 Pack) - Hanna Instruments
Hanna Instruments$39.00HI50021P is a premium quality calibration check solution used exclusively for the HI9813-6 portable pH/EC/TDS/Temp. meter. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one... -
HI98103 Checker pH Tester with 0.1 pH Resolution - Hanna Instruments
Hanna Instruments$38.00The 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,... -
Saltwater Master Test Kit (High Range pH, Ammonia, Nitrite, Nitrate) - API
API$35.98Saltwater Master Test Kit - A complete kit for testing marine aquarium water. Tests water four ways to protect marine fish and invertebrates from dangerous water conditions. Kit includes tests for: High Range pH, Ammonia, Nitrite, Nitrate, plus four test... -
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... -
Reef Master Test Kit (Calcium, KH, Phosphate, Nitrate) - API
API$34.98Reef Master Test Kit - To maintain and grow healthy corals, the correct balance of calcium and carbonates is essential, as are low levels of phosphate and nitrate. This kit provides highly accurate testing for each of these critical... -
On Sale 15%
PINPOINT pH Probe Lab Grade Double Junction - American Marine
American Marine$39.99$33.99The 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... -
On Sale 15%
MA911B/2 pH Electrode/Probe - Milwaukee
Milwaukee Instruments$38.99$33.14Replacement double junction pH electrode for Milwaukee pH meter or pH/CO2 meter. BNC connector. -
Smart Magnetic Stirir for Testing - AutoAqua
AutoAqua$32.99A magnetic stirrer for mixing water test reagents efficiently and effortlessly. LABOR AND TIME SAVING Water testing is critical and necessary for aquariums. However, it is annoying and time-consuming to mix different test kits one by one... -
NO2-NO3 Nitrate/Nitrite Test Professional - Tropic Marin
Tropic Marin$32.73Nitrate ions (NO3–) are formed from ammonium (NH4+) as the end product of the nitrification process. Nitrite (NO2–), which is highly toxic to freshwater species in particular, is produced in the first stage of the bacterial process. If the... -
HI70442P 1500 mg/L (ppm) TDS Calibration Solution 20 mL (25 Pack) - Hanna Instruments
Hanna Instruments$32.00HI70442P is a premium quality 1,500 mg/L (ppm) TDS 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... -
On Sale 15%
Master Liquid Test Kit - Fritz Aquatics
Fritz Aquatics$36.74$31.23Perfect for starting a new system Includes 4 Essential Test Kits Accurate in both Fresh and Saltwater About Fritz Liquid Test Kits - Master Test Kit Fritz Aquatics Master Test Kit contains four essential test kit formulas in... -
Phosphate Pro Test Refill (PO4) - 100 Tests - Red Sea
Red Sea$30.99Reagent refill for Red Sea Phosphate Pro Test Kit. Enough reagent for 100 tests. Red Sea reagent refills make this line of test kits one of the most affordable high quality test kits available. -
Nitrate Pro Test Refill - Red Sea
Red Sea$30.99Reagent refill for Red Sea Nitrate Pro Test Kit. Enough reagent for 100 tests. Red Sea reagent refills make this line of test kits one of the most affordable high quality test kits available. -
On Sale 15%
PhosGuard Phosphate Remover (2 L) - Seachem
Seachem$35.61$30.27PhosGuard 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... -
On Sale 15%
PhosBond (1 L) - Seachem
Seachem$35.57$30.23PhosBond™ is a revolutionary new product that combines the phosphate removing capabilities of both aluminum oxide and granular ferric oxide into a singular material forming a synergistic effect. It rapidly removes phosphates and silicates from... -
NO2 + NO3 Nitrate/Nitrite AquaHome Precision REFILL Kit (Mastertronic) - Fauna Marin
Fauna Marin$29.95This is the REFILL Kit, there are no reference materials or case. The Fauna Marin N02 + NO3 Test is very high-resolution and can determine the nitrate/nitrite concentration with a particularly high accuracy in the low concentration range. The... -
35 ppt Salinity Calibration Solution Packs HI70024P (25 x 20 mL) - Hanna Instruments
Hanna Instruments$29.00HI70024P 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... -
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... -
pH 10.01 Calibration Buffer 20 ml (Pack of 25) - Hanna Instruments
Hanna Instruments$29.00HI70010P 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 25) - Hanna Instruments
Hanna Instruments$29.00HI70007P 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 25) - Hanna Instruments
Hanna Instruments$29.00HI70004P 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... -
Magnesium Marine Test Kit - Red Sea
Red Sea$28.99Red Sea's user-friendly Magnesium filtration test provides a quick and reliable measurement of Magnesium in your aquarium to an accuracy of either 50ppm or 100ppm according to your needs. -
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%
Strontium (Sr) Test Kit - Salifert
Salifert$33.18$28.20Trust your aquarium to Salifert. This test kit will measure ionically free strontium and complex, important for the accelerated growth of corals. Salifert test kits are the epitome of accuracy and precision. The sharp, contrasting color... -
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... -
PO4 Phosphate Test Professional - Tropic Marin
Tropic Marin$27.28Phosphates (PO43–) are important nutrients for all plants and are vital for the energy metabolism of every living cell. Phosphates are released into the aquarium water via food and the decomposition process of organic matter. However, an... -
HI758-26 Marine Calcium Checker Reagents (25 Tests) - Hanna Instruments
Hanna Instruments$27.00Extreme 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 HI758... -
Calcium Marine Test Kit - Red Sea
Red Sea$26.99Calcium Test Kit Accurate measurement of Calcium in marine aquariums Ca Red Sea’s user-friendly Calcium titration test provides a quick and reliable measurement of calcium in your aquarium to an accuracy of either 15ppm or 30ppm according to... -
Marine Test Kit Nitrite & Nitrate - Red Sea
Red Sea$26.99It’s all in the balance This combined test kit provides either 100 nitrite or 50 Nitrate and 50 Nitrite advanced colorimetric tests for marine aquariums. This kit is essential during the maturation of all marine and reef...