Calcium Reagent HI758 sand Ideal for weekly/monthly dosing or

Ideal for weekly/monthly dosing or small adjustments

maintaining low nitrates

dissolved metals

When it comes to filter carbon we are pretty picky and wouldn’t recommend any ordinary carbon

high phosphate levels can cause nuisance algae growth in your reef tank

Calcium Reagent HI758 sand Ideal for weekly/monthly dosing orThe HI758U Checker HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure calcium. Required for the development of calcium carbonate skeletons of coral reefs, calcium is a crucial component of marine waters. Designed as a more accurate alternative to chemical test kits, the HI758U provides quick, accurate results in a few easy steps.