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Those do require being topped off with RODI water and sitting until the solution is fully dissolved
The long contact time between the water and the air that our skimmers provide is key to successful protein skimming
One of the scientific studies shows that a phosphate concentration higher than 0
A more economical version suitable for a one time major correction is the Salifert Magnesium-powder
Item #: SIM2003
HI758-11 Hanna Instruments HI758-11 Marine Calcium Checker® HC Calibration Check Set dosing additives Those do require being toppedThe 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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