Peters Professional Liquid S.T.E.M.® — Chelated Micronutrient Supplement

For over 50 years, Peters S.T.E.M.® has been the industry standard chelated micronutrient supplement for professional growers. Now available in a convenient ready-to-mix liquid formulation — no dissolving, no clumping, one-step tank mixing.

Formulated with a balanced blend of all six essential chelated micronutrients, Liquid S.T.E.M. integrates seamlessly into any fertigation program and is fully compatible with Peters Professional water-soluble fertilizers.

Key Benefits

• All six essential chelated micronutrients in one product
• Ready-to-mix liquid — no pre-dissolving required
• Fully compatible with Peters Professional fertilizer programs
• Ideal for drip, flood, and recirculating hydroponic systems
• Trusted by commercial greenhouse and specialty crop growers worldwide

Guaranteed Analysis

• Boron (B): 0.50%
• Copper (Cu): 0.50% chelated with EDTA
• Iron (Fe): 5.00% chelated with EDTA
• Manganese (Mn): 2.50% chelated with EDTA
• Molybdenum (Mo): 0.10%
• Zinc (Zn): 1.00% chelated with EDTA

Application Rates

• General use: 1–2 fl oz per 100 gallons of nutrient solution
• Deficiency correction: Up to 4 fl oz per 100 gallons

About Peters Professional / ICL

Peters Professional is the most trusted name in professional water-soluble fertilizers and crop inputs, backed by decades of research and used by commercial growers worldwide.