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    Easy Digital Testing with Precise Results for Reef Tanks If you ask anyone what are the most important parameters to monitor in a reef tank for good coral growth and health, pretty much everyone will answer with Calcium, Alkalinity, & Phosphates. Hanna Instruments HIREEF2 Test kit includes…

    $292.00 Regular Price: $

    The HI782 Nitrate Checker HC by Hanna Instruments is a simple and accurate handheld colorimeter that uses the zinc reduction method to determine nitrate concentration in marine applications. With a digital read out, there is no more struggling to determine colors visually. The HI782`s high range of…

    $63.95 Regular Price: $

    Ammonia is naturally produced in aquariums as a byproduct of waste produced from your livestock. It is a natural part of the Nitrogen Cycle that maintains balance in a healthy aquarium. When too much ammonia accumulates in the aquarium, ammonia toxicity can occur and seriously affect the health of…

    $63.95 Regular Price: $

    Reagent refill for Alkalinity Colorimeter HI772 or HI755 Hanna Checker HC Marine Water, as well as the Marine Master HI97105 Multiparameter Photometer. Enough reagent for 25 tests. Item #: HI755-26

    $13.00 Regular Price: $

    Check for low ranges of Nitrites in your fresh water. The Hanna HI707 Checker HC Handheld Colorimeter for Nitrite LR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next,…

    $63.95 Regular Price: $

    Compatible with fresh or saltwater! No longer do you need to read color charts, trust Hanna's HI702 Copper Checker to know the precise amount of copper in your aquarium water. The High Range Colorimeter gives greater precision over previous models and gives you a digital reading on a large LCD…

    $63.95 Regular Price: $

    NIST Traceable Salinity Calibration Hanna HI70024P Salinity Calibration Sachets are perfect for any conductivity probe or pen. The single-use sachets are made of light-blocking foil that prevents oxidation, ensuring the solutions are as fresh as the day it was packaged. Each sachet is marked with a…

    $1.16 Regular Price: $

    Why does BRS recommend this? The Hanna Alkalinity checker is an awesome little tool that now will give results in DKH values that are much more common in the aquarium hobby. It will also give you accurate easy to read results with the large LCD display. We like the repeatable results and ability to…

    $63.95 Regular Price: $

    Designed for Simple Aquarium Salinity Testing Hanna Instruments HI98319 Marine Salinity Tester measures electrical conductivity (EC) to determine the salinity of natural and artificial seawater. Within seconds, the salinity and temperature are measured,and then using the temperature reading,…

    $79.99 Regular Price: $

    If you have lost or broken the included cuvettes and caps that were included with your Hanna Checker or simply just want an extra set on hand, we carry replacements directly from Hanna. Over time the glass vials can become stained and discolored which can lead to inaccurate readings. We suggest…

    $11.00 Regular Price: $

    Microfiber cleaning cloth from Hanna. Keep your cuvettes clean for optimal checker accuracy!

    $15.00 Regular Price: $

    Have your pH readings displayed through a large LCD window down to a resolution of 0.01 pH. Monitor your aquariums temperature and pH all with a single pen-style tester. Hanna's HI98108 Waterproof pHep+ Tester can give you pH readings from 0.00 all the way up to 14.0 pH making it perfect for…

    $58.00 Regular Price: $

    The HI774 Ultra Low Range Phosphate Checker® is a cost-effective way to measure phosphate in marine systems, including reef tanks. Excessive phosphate levels can prevent calcification, skeletal formation, and growth of many coral species, particularly those referred to as SPS or small-polyp…

    $63.95 Regular Price: $

    Building your arsenal of trustworthy test kits can be a long and expensive process, so why not skip the headache? We've asked a few of our long-time hobbyists for their recommendations based on their own trial and error-- they've done the years of experimenting, so you don't have to! Here, we've…

    $244.99 Regular Price: $
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    Easily calibrate and test proper functionality of your Hanna Checker HI780 Marine pH Colorimeter. Contains Standard A and Standard B Follow instructions in packaging Includes certificate of analysis Reuseable with long shelf life Hanna Checker Instructions for Marine pH Calibration Check Set: 1.…

    $16.00 Regular Price: $

    Ultra Pure Magnesium Additive for 2-Part Maintenance in your Reef Tank! Maintaining proper magnesium levels helps achieve the essential balance of calcium and alkalinity in your tank by preventing excess calcium carbonate precipitation. Not all magnesium additives are created equal and the largest…

    $19.99 Regular Price: $

    Reagent refill for Nitrate High Range Colorimeter HI782 - Marine Water as well as the Marine Master HI97105 Multiparameter Photometer. Enough reagent for 25 tests. Item #: HI782-25

    $16.00 Regular Price: $

    Hanna's General Purpose Cleaning Solution is great for cleaning electrodes on your Apex, ReefKeeper and BRS pH and ORP probes. Clean the liquid junction of your electrodes once a day or at least once a week to prevent clogging and to maintain accuracy. Immerse the electrode in the proper cleaning…

    $15.00 Regular Price: $

    The HI780 Marine pH Checker HC is a simple, accurate and cost effective way to measure pH in saltwater. With a digital readout, there is no more struggling to determine colors visually. This pH tester's compact design stores easily with your other testing equipment. Keeping your aquarium pH stable…

    $63.95 Regular Price: $

    Extra cuvettes (vials) for your Hanna Colorimeter Checkers. Caps NOT included Precision glass, necessary for taking accurate measurements For most accurate readings, cuvette must be clean and free of scratches

    $23.00 Regular Price: $

    Why does BRS recommend this? The Hanna Phosphate Checker is an awesome little tool that will give you accurate easy to read results. If you have bad eyes or have a hard time with color change test kits, the digital readout on the Hanna checkers is super easy to read. The biggest key with Hanna…

    $63.95 Regular Price: $

    Ammonia Low Range reagent refills for the easy to use, handheld Hanna Ammonia Low Range Checker for Fresh Water (HI700). Individual reagent packets for 25 tests. Enough reagents for 25 tests Item#: HI700-25

    $15.00 Regular Price: $

    Monitoring phosphorus concentration in saltwater is important because it can cause corrosion if levels are too high. The Hanna HI736 Checker HC Handheld Colorimeter for Phosphorus ULR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to…

    $63.95 Regular Price: $

    Thanks to its special formulation, Copper Power is one of the safest and yet most effective copper solutions for treatment of external parasites, such as ich and velvet. Copper Power contains a very stable form of copper medication with low levels of precipitation, and thanks to this it is able to…

    $4.99 Regular Price: $
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    Magnesium is a crucial element in saltwater environments, as it allows calcium and carbonate to be bioavailable for corals and other invertebrates. Therefore, consistent and accurate testing of magnesium levels in your marine aquarium is vital to ensure a healthy and thriving system. The HI783…

    $63.95 Regular Price: $
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    Phosphate reagent refills for the easy to use, handheld Hanna Low Range Phosphate Checker HI713. Reagents for 25 tests.

    $13.00 Regular Price: $

    Four simple steps to results. Easily and accurately test for low range ammonia in fresh water with the Hanna Checker Colorimeter - Ammonia Low Range for Fresh Water (HI 700). Designed to be more accurate alternative to chemical test kits. First, add sample to the included cuvette. Next, insert…

    $63.95 Regular Price: $

    Easily calibrate and test proper functionality of your Hanna Checker HI755 Alkalinity for marine water. Contains Standard A and Standard B Follow instructions in packaging Acceptable results must be between 90 and 110 ppm at 25°C Hanna Checker Instructions for Marine Alkalinity Standards: 1.…

    $13.00 Regular Price: $

    Hanna HI702-25 includes 25 pre-measured reagent packets that can be used with the HI702 High Range Copper Checker. Each package has been designed for a single use and allows for a perfect reagent measurement that will not become contaminated. The reagents use the Bicinchoninate Method which produces…

    $13.00 Regular Price: $

    Easily calibrate and test proper functionality of your Hanna Checker HI736 Phosphorus Ultra Low Range for marine water (saltwater). Contains Standard A and Standard B Follow instructions in packaging Acceptable results must be between 90 and 110 ppb at 25°C Hanna Checker Instructions for…

    $13.00 Regular Price: $

    Solution for cleaning cuvettes (vials) for photometers, colorimeters and turbidimeters from Hanna Instruments. Used with cuvette cleaning clothes 230 mL bottle

    $28.00 Regular Price: $

    Nitrite reagent refills for the easy to use, handheld Hanna Checker HI764 Nitrate Ultra Low Range as well as the Marine Master HI97105 Multiparameter Photometer. Individual reagent packets for 25 tests. Reagent refill for Hanna Checker Nitrite ULR HI764. Enough reagent for 25 tests.

    $13.00 Regular Price: $
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