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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... -
Smart Temp Magnetic Thermometer - JW Pet
JW Pet$5.95JW 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... -
Electrode Cleaning Solution (230 ml) HI7061M - Hanna Instruments
Hanna Instruments$13.00HI7061M 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... -
On Sale 15%
PINPOINT pH 7.0 Calibration Fluid (5 Pack)
American Marine$5.95$5.06PINPOINT® 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... -
On Sale 15%
Digital Seawater Refractometer MA887 - Milwaukee
Milwaukee Instruments$114.00$96.90This refractometer does not come with a case or battery. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation. Each... -
pH 4.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments
Hanna Instruments$1.49HI70004P 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... -
Checker Plus pH Tester (HI98100) Plus - Hanna Instruments
Hanna Instruments$48.00The 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... -
10.00 pH Calibration Fluid (Single Pack) - Neptune Systems
Neptune Systems$1.95Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure. Over the course of a couple months, it is... -
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... -
(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... -
7.00 pH Calibration Fluid (Single Pack) - Neptune Systems
Neptune Systems$1.95Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure. Over the course of a couple months, it is... -
Hanna HI702 High Range Copper Checker (Saltwater) - Hanna Instruments
Hanna Instruments$63.95The HI702 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure copper in your saltwater aquarium. Designed as a more accurate alternative to chemical test kits, the HI702 provides quick, accurate results in a... -
Hanna HI736 Phosphorus Ultra Low Range Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$63.95The 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... -
On Sale 15%
Phosphate (PO4) Test Kit - Salifert
Salifert$19.61$16.67Phosphate also blocks or retards the growth of corals and calcareous algae. One of the scientific studies shows that a phosphate concentration higher than 0.05 mg/L decreases the growth of calcareous algae by 90%! Washing fish food, which is a rich... -
HI764-25 Nitrite Ultra Low Range Reagent (25 Tests) - Hanna Instruments
Hanna Instruments$13.00The HI764-25 are the replacement reagents for the HI764 Nitrite 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... -
Hanna HI755 Marine Alkalinity Checker HC Alk (Saltwater) - Hanna Instruments
Hanna Instruments$63.95Extreme 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 Marine... -
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... -
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) -
Hanna Master Reef Test Kit (755 Alk, 758 Calcium, 713 Phosphate, 781 Nitrate) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$255.80755 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... -
(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... -
Magnesium Pro Test Refill - Red Sea
Red Sea$24.99Red 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... -
Hanna Master Reef Test Kit (772 dkh, 758 Calcium, 713 Phosphate, 781 Nitrate) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$255.80772 Checker The HI772 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only... -
On Sale 15%
Nitrate (NO3) Reefer Test Kit 40 Tests - NYOS Aquatics
NYOS$24.99$21.24NITRATE 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 is... -
On Sale 15%
Pinpoint pH Calibration Fluid Kit - pH 4.0, 7.0, 10.0 - American Marine
American Marine$4.95$4.21PINPOINT® 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... -
On Sale 15%
PINPOINT pH 10.0 Calibration Fluid (5 Pack)
American Marine$5.95$5.06PINPOINT® 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... -
Digital Thermometer - Coralife
Coralife$9.99Attaches to aquarium via small suction cup 3 foot long temperature probe for large size aquariums Battery included Ideal for aquariums and terrariums Readings to 0.1-degrees... -
Apex Lab Grade Salinity/Conductivity Probe - Neptune Systems
Neptune Systems$209.99Start measuring salinity in your tank and get alerts when out of range. Buy this probe if you are: Replacing an old probe. Adding salinity monitoring to your system via a PM2. -
Calcium Pro Test Refill - Red Sea
Red Sea$24.99Refill contains all reagents used in the Red Sea calcium test kitCalcium, an essential component in the building of coral skeletons, is constantly depleted from the aquarium and needs to be monitored on a regular basis. Calcium Pro is an advanced calcium... -
On Sale 15%
PINPOINT ORP Monitor - American Marine
American Marine$114.99$97.74PINPOINT® ORP Monitor will measure the ORP (oxidation-reduction potential, or REDOX) of your system. It is popular with those who use ozone gas or potassium permanganate as an artificial oxidation agent in fresh or saltwater. It is also popular for... -
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... -
7.00 pH Calibration Fluid (5 Pack) - Neptune Systems
Neptune Systems$9.99Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure. Over the course of a couple months, it is... -
On Sale 15%
Ammonia (NH3) Test Kit - Salifert
Salifert$13.99$11.89For 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... -
10.00 pH Calibration Fluid (5 Pack) - Neptune Systems
Neptune Systems$9.99Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure. Over the course of a couple months, it is... -
On Sale 15%
pH Test Kit - Salifert
Salifert$10.92$9.28If the pH is too low then the cause may be a too low alkalinity and/or insufficient aeration. A low pH can be corrected by improving aeration and by increasing the alkalinity to NSW (Natural seawater) value or upto approx 25% above NSW levels. The... -
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 (NO3) High Definition Comparator Test Kit - 100 Tests - Red Sea
Red Sea$54.99Red Sea’s Nitrate Pro Test Kit is an advanced colorimetric test with comparator, measuring the level of nitrate in your reef aquarium to an exceptionally high accuracy of 0.12ppm NO3. Nitrate Pro Test Kit , when used in conjunction... -
KH/Alkalinity Pro Test Refill - Red Sea
Red Sea$24.99Reagent alkalinity pro refill test kit is an advanced titration test Measuring the level of buffers in reef aquarium to an exceptionally high accuracy of 0.05 meq/l (0.14 dkh) This test refill replenishes KH/alkalinity pro test kit with sufficient... -
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... -
HI97115UC Bluetooth Marine Master Multiparameter Checker - Hanna Instruments
Hanna Instruments$449.95One Meter to RULE THEM ALL! Marine Master Waterproof Wireless Multiparameter Photometer w/Bluetooth Connection to the Hanna App where you can save your results. pH (HI780) Alkalinity (HI772) Ammonia (HI784) Calcium (HI758) Magnesium... -
Nitrate Test Kit (90 Tests) - API
API$13.98The API Nitrate Test Kit will allow you to accurately and easily measure the nitrate level and provides steps to remove it. Kit includes 2 liquid droppers, instructions on how to test and correct water conditions, a glass test tube, and 2 colors charts...