Find the lowest price for:       All ProductsAdditives & Supplements     0.0 (0)   Add a review Salifert Magnesium 1000 ml   Why is Magnesium required?Magnesium is present in NSW Natural Sea Water in a fairly high concentration 1350 1500 mg/L. Magnesium is an essential part of chlorophyll which is necessary for photosynthesis.... Have a question? Ask the Experts! Compare Prices Product Spec Member Reviews Recommend to Friends Edit the spec Brand Salifert Category Magnesium Something wrong in this page? Let us know! Related products: More Salifert Additives & Supplements Other Additives & Supplements internal use: spec169 spec194 spec205