• Picture of a box containing a test for water gh and kh.
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    The best way to keep your aquarium clean is to maintain good water quality. This will keep your fish strong and vibrant, as well as preventing disease.  Helps to buffer swings in pH that are dangerous to your fish.

  • Picture of a box of KH hardness testing kit from API
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    Keep your fish healthy and thriving by testing your aquarium water's KH levels regularly with this easy-to-use API CARBONATE TEST KIT for freshwater aquariums. API CARBONATE HARDNESS TEST KIT helps prevent pH problems by stabilizing aquarium pH in fresh and saltwater aquariums. Fast, easy, and accurate testing evaluates KH levels in aquarium water, so that they may be corrected if too low or high. Water with low KH is susceptible to rapid pH shifts, stressing fish and increasing the risk of disease.
  • picture of 4 Glass Replacement Test Tubes with lids
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    Set of 4 replacement test tubes for the API Master Aquarium Test Kit.
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    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.
    • The compact design fits right in your pocket so you can take it anywhere.
    • A cloth junction provides a larger surface area than a standard ceramic junction.
    • Great for aquaponics, aquaculture, aquariums, pools, & ponds.
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    HI7007L is a premium quality pH 7.01 buffer solution. With lot number and expiration date clearly marked on the label and an airtight, tamper-proof seal to ensure the quality of the solution, Hanna's line of pH calibration solutions are an easy way to get great pH measurements every time.
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    HI7061L is a general-purpose cleaning solution for use with pH and ORP electrode that can be used for a variety of applications. pH electrodes become dirty with use and can produce inaccurate results. Use our General Purpose pH Electrode Cleaning Solution to prolong the life of your electrode and ensure accurate readings.
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    Hanna pH Electrode Storage Solution is an electrode storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. Properly storing your pH electrode in a solution keeps the glass membrane well hydrated which maintains proper function and provides accurate readings.
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    The Waterproof ORP/PH/Temp tester is ideal for taking measurements virtually anywhere. With this ORP tester, monitor both pH and ORP at the same time. These are special order items.  Please allow up to 2 weeks for shipping
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