GROTEK CAL-MAX

Trusted Cal-Mag blend for vigorous growth. Grotek Cal-Max supports flowering, fruiting, and healthy tissue structure with a clean blend of essential nutrients and iron chelate. Ideal for preventing tip burn and blossom end rot.

• Fortifies plant cell walls and fruiting sites
• Excellent for LED setups and high-performance grows
• Easy to use with most base nutrients

Backed by results .

Shipping Information

Exceptional products deserve exceptional service. Orders to the US and Canada arrive in just 2 to 10 business days. Spend over $125 and shipping is on us (conditions apply). For details, see our Shipping Policies.

Returns and Exchanges

Your satisfaction matters. Return your purchase within 30 days, hassle free, as long as it is unopened and in its original condition. Learn more in our Returns and Exchanges Policies. Shop confidently. Your peace of mind is guaranteed.