Salifert Magnesium Test Kit Information Magnesium Profi-Test Magnesium is present in natural sea water in a fairly high concentration (1350 - 1500 mg/L) and is an essential element of chlorophyll which is necessary for photosynthesis.
Salifert test kits are also some of the most economic Get accurate, easy to read magnesium results in minutes! Trusted by discerning reefers for years, Salifert Test Kits feature some of the easiest to read results available. Their test kits include easy to follow instructions and straightforward, accurate results.
