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Most refractometers used within the aquarium hobby are not specifically designed for reef aquariums and use an algorithm for the measurement of brine (NaCl – rather than seawater) and at a temperature of 15C/59F rather than 25C/77F
purity of ingredients
commonly abbreviated as dKH
375 inches (9
Hanna Phosphorus Ultra Low Range Checker® HC Reagents (25 Tests) - HI736-25 Goby Most refractometers used within theThe HI736 25 are the replacement reagents for the HI736 Phosphorus Ultra Low Range Checker HC. These high quality reagents are manufactured in our state of the art facility and are clearly marked with the lot number and expiration date on each packet for traceability. Pre made reagents for ease of use Prepared with high purity chemicals Marked with expiration date and lot number for traceability
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