Premium liquid magnesium test kit for marine aquariumsPrecise magnesium measurement in increments of 30 ppmMaintain proper magnesium level for healthy reef aquariumsThe Salifert Magnesium Profi Test makes testing magnesium levels easy and accurate. Reef aquarium enthusiasts have relied on the precision quality of Salifert test kits for years. Monitor and maintain magnesium levels without fear of skewed test results due to strontium or calcium interference. Salifert Magnesium Test kit is an essential part of any magnesium- or any reef-supplementation regimen. For use in marine aquariums only. 50 tests.Range: 30 to 1500 ppmPlease click on "More Information" for instructions.

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