Carl Pool Hydroponic Special 4-18-38 Water Soluble Fertilizer shale per 30 square feet into

per 30 square feet into top 6 inches of soil

Long-lasting Freedom from Crawling Insects

work into soil

This takes the  takes the guess work out of litmus paper

Carl Pool Hydroponic Special 4-18-38 Water Soluble Fertilizer shale per 30 square feet intoFrom Texas based crop specialist Carl Pool comes a water soluble fertilizer that serves as a complete nutrient source for a wide variety of crops grown in both hydroponics systems and and soil based agriculture. Carl Pool 4 18 38 Hydroponic Special is a complete blend of essential plant nutrients including magnesium and sulfur with no need to add Epsom salt (magnesium sulfate) to create a Part B of a two part nutrient solution. Carl Pool 4 18 38