The Hanna Instruments Core Parameters Kit provides lab-grade precision for the three most critical elements in a reef aquarium. This bundle includes digital checkers for alkalinity (HI772), calcium (HI758), and magnesium (HI783), allowing hobbyists to move beyond subjective color-matching test kits. By delivering accurate digital readouts, this kit empowers you to maintain a stable and healthy environment essential for coral growth and vibrant coloration.

Each checker in the kit is designed for simplicity and speed, offering results in just a few minutes. The HI772 measures alkalinity in dKH to ensure proper pH buffering, while the HI758 measures calcium in ppm, a crucial component for coral skeletal development. The HI783 checker monitors magnesium, which helps maintain balanced calcium and alkalinity levels. All three devices follow a simple four-step process: zero the checker, add the reagent, insert the vial, and read the precise digital result on the large LCD screen.

This core parameters kit is ideal for any saltwater reef aquarist who is serious about coral health and tired of the guesswork associated with traditional liquid test kits. Whether you are a beginner looking for an easier testing method or an advanced reefer demanding accuracy and consistency, this kit provides the confidence needed to make informed adjustments to your water chemistry. It makes professional-level testing accessible, ensuring your corals have the stable foundation they need to thrive.