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These top quality chillers are made on the same assembly line as your AQUA-MEDIC and use the same internals
which could result in air bubbles when the pump resumes its scheduled operation
Built from 100% waterproof
100% pure construction materials
Hanna Marine Magnesium Checker - HI783 treatment These top quality chillers areThe HI783 Marine Magnesium Checker HC is a handheld colorimeter that uses the Beer Lambert principle to determine the concentration of magnesium colorimetrically. The HI783 is designed specifically to measure magnesium levels in a saltwater aquarium or in marine biology applications. The 1000 to 1800 ppm range is ideal for coral fish or fish only aquarium maintenance. Ideal for aquariums and marine biology Easier to use and more accurate than chemical