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The NilocG Aquatics Magnesium Sulfate fertilizer (MgSO4) is designed to provide a source of Magnesium (Mg) which is a key component of chlorophyll and the transport of iron (Fe). In addition, this MgSO4 fertilizer also contains Sulfur (S) which is essential for root development.
The Magnesium Sulfate fertilizer comes in a 1lb sealed bag.
Magnesium Sulfate Heptahydrate(MgSO4.7H2O)
Magnesium (Mg) 10.0%
3/4 tsp into 10 gallons will add 10ppm Magnesium