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Instructions & Guidelines - Refractometers
The nitrate concentration in a reef aquarium should be lower than 1 mg/L
Life Bio Fil is a natural biological filtration media
In sea water
The unique formula was created based on the same strontium and barium ratio as natural seawater
Hanna Instrument Saltwater Calcium Checker HI758 aquaforest Instructions & Guidelines - RefractometersThe 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.