Fertilizer Hydroponic Greenhouse 15.5-0-0 19% Calcium 1 lb bag

For use in all hydroponic and greenhouse applications. HYDROPONIC PLANT FOOD with CALCIUM (19%). 1/2 teaspoon (approx. 3 grams) into 1 gal of water. Total Calcium (Ca) 19%. In a reclosable stand-up water resistant pouch.

eBay