NPK Industries Raw Calcium/Magnesium Fertilizers 8-Ounce

- Raw Calcium/Mag Contains 15% Calcium And 3% Magnesium - Raw Calcium/Mag Has Optimized The Ratio Of Each Element In A Water Soluble Formulation Of Calcium Nitrate And Magnesium Sulfate So That It Doesn’T Leave The Media Salty - Raw Calcium/Mag Is A Stand Alone Calcium/Mag Supplement - No Assembly Required