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the dominant female may even change to a male coloration without changing sex
Before Using
the advance series also features a third compartment that allows hobbyist to add bio-balls or matrix to their system for additional filtration
Easy feed top cover opening
Easy to connect with standard tubing and fittings
Hanna Marine Calcium Checker® HC Reagents (25 Tests) test strips the dominant female may evenThe Marine Calcium Checker HC Calibration Check Set HI758 11 provides a simple solution to validating the Marine Calcium Checker HC HI758 that has a range of 200 to 600 ppm calcium. This high quality set of standards is manufactured in our state of the art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date for traceability when certifying the CheckerHC.
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