Product Guides
Get the most from your Classic Line nutrients. Learn how to mix, measure, and apply Grow, Micro, and Bloom with step-by-step feeding and usage guides.
Cronk Nutrients 3-Part Base Mixing Guide: Master Feeding for Maximum Growth
Learn how to mix Cronk Nutrients’ 3-Part Base System. See the correct ratios, pH targets, and Week 3 feed chart example for strong, healthy plant growth.
Cronk Classic 3-Part Kit: Complete Guide to Professional Plant Nutrition
The Classic 3-Part Kit provides complete plant nutrition through Micro, Grow, and Bloom formulas, giving growers precise control over nutrient ratios at every growth stage.
Cronk Big Bud Kit: Complete 5-Part System for Maximum Results
The Big Bud Kit delivers everything needed for professional results: Classic 3-Part foundation plus CalMag for deficiency prevention and Bud Booster for enhanced flowering performance.
Cronk Micro 5-0-1: Complete Guide to the Foundation of Plant Nutrition
Micro 5-0-1 is the foundational component of the Cronk Classic 3-Part system, delivering essential calcium, chelated iron, and trace minerals that enable plants to utilize macronutrients effectively.
Cronk Grow 2-1-6: Complete Guide to Vegetative Nutrition
Grow 2-1-6 is the potassium-forward vegetative component of the Cronk Classic 3-Part system, building strong stems, healthy leaves, and robust root systems for productive flowering.
Cronk Bloom 0-5-3: Complete Guide to Flowering Nutrition
Bloom 0-5-3 is the zero-nitrogen flowering component of the Cronk Classic 3-Part system, delivering elevated phosphorus and potassium for flower development, bud density, and terpene production.