HI758-11 Hanna Instruments HI758-11 Marine Calcium Checker® HC Calibration Check Set dosing additives along with regular water changes

along with regular water changes with a high quality salt

The long contact time between the water and the air that our skimmers provide is key to successful protein skimming

Can be used to clean the inside of empty aquariums

5 dKH or 80

Each bag contains a packet of Bio-Magnet clarifier to reposition any free floating bacteria to where they are most active: sand beds

HI758-11 Hanna Instruments HI758-11 Marine Calcium Checker® HC Calibration Check Set dosing additives along with regular water changesThe 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.