ICL Peters 21-7-7 Acid Special 99330 (C) 25lb

Produce healthy, acid-loving crops with this formula's high potential acidity that offsets high water alkalinity or lowers pH levels in growing media.
*C (Customizing) component can be used with a variety of B (Base) formulations
*Excellent choice for Water Types 3 and 4
*Contains a full range of essential micronutrients plus extra iron to promote greening