Marine Magnesium Checker HC HI783 (Saltwater) AutoAqua 8" from the glass to

8" from the glass to the pump edge

Magnet Holder with Silence clamp up to a glass thickness of 12 mm (½”)

typically growing 6–12 inches

but make sure you keep the lid off the container until then

Phosphates are going to be one of the biggest battles we have with a reef aquarium

Marine Magnesium Checker HC HI783 (Saltwater) AutoAqua 8" from the glass toThe testing process is the same as Alkalinity HI772 with one second liquid reagent. The 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.