Water Controller

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    …the most up to date concentrations and dosing instructions. Caution: Keep out of reach of children. Not for human consumption. Ingredients Purified water, proprietary phosphorus salts. Technical Background Successfully-operated low-nutrient and ultra-low-nutrient reef aquaria rely upon a balance of…

    Starting at:
    $6.99

    …most up to date concentrations and dosing instructions.   Caution Keep out of reach of children. Not for human consumption.   Ingredients Purified water, proprietary nitrogen salts.   Technical Background Successfully-operated low-nutrient and ultra-low-nutrient reef aquaria rely upon a balance of…

    Starting at:
    $6.99

    Easily calibrate and test proper functionality of your Hanna Checker HI772 Alkalinity (DKH) for fresh and marine water. Contains Standard A and Standard B Follow instructions in packaging Includes certificate of analysis Reusaable with long shelf life Hanna Checker Instructions for Marine Alkalinity…

    $20.00

    …one of the most important tools to have if you own a saltwater tank. Without a refractometer, we would be guessing at how much salt is in the water, and more than likely would not be correct! Even if you have a refractometer, it is only as good as how accurate it is calibrated. BRS Calibration…

    $6.99

    Quickly and accurately get a digital readout of the salinity and temperature of your aquarium water. Seawater contains a variety of elements that will contribute to the overall specific gravity of the water. Many digital salinity meters are calibrated to read a sodium chloride only or brine solution…

    $69.99