Salifert 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. Without photosynth...
Salifert Silicate Profi-Test
Silicate occurs in tap water or purified water when the reverse osmosis or de ionizing unit is not functioning properly.
Silicate can result in diatom bloom and can block some essential trac...