Cronk Micro 5-0-1 | Base Fertilizer with Calcium & Iron
Cronk Micro 5-0-1 | Base Fertilizer with Calcium & Iron
What's Inside
Guaranteed Analysis: 5-0-1
| Total Nitrogen (N) | 5% |
| Soluble Potash (K₂O) | 1% |
| Calcium (Ca) | 5.0% |
| Iron (Fe) (Chelated) | 0.1% |
| Manganese (Mn) (Chelated) | 0.1% |
| Boron (B) | 0.01% |
| Copper (Cu) (Chelated) | 0.01% |
| Molybdenum (Mo) | 0.0008% |
| Zinc (Zn) (Chelated) | 0.015% |
Derived From:
Ammonium Molybdate, Ammonium Nitrate, Calcium Carbonate, Calcium Nitrate, Copper EDTA, Iron EDTA, Manganese EDTA, Potassium Borate, Potassium Nitrate, and Zinc EDTA
How To Use
Micro 5-0-1
Part of Cronk Nutrients 3-Part Base system and is recommended to be used with Grow and Bloom. Provides essential chelated micronutrients, calcium, and nitrogen to establish a strong foundation for plant growth. Use with every feeding throughout the entire grow cycle.
- Mix in room temperature water (65-72°F / 18-22°C)
- CRITICAL: Always add Micro before Grow and Bloom to prevent nutrient precipitation. Armadillo Armour and CalMag (if using) go in before Micro
- Use with every feeding from seedling through harvest
- Start with lower dosages for seedlings and gradually increase as plants mature
- If using Armadillo Armour, add it before Micro
- Never use Micro alone - always use with Grow and Bloom
- For specific dosages and week-by-week schedule, see Feed Schedules section
⚠️ Mixing Order: Armadillo (if using) → CalMag (if using) → Micro → Grow → Bloom → Additives → adjust pH → Monkey Juice (LAST)
Basic Mixing Instructions
- Start with room temperature water (65-72°F / 18-22°C)
- If using Armadillo Armour, add it FIRST, stir, and wait 5 to 10 minutes
- Add CalMag (if using), stir, and wait 2 to 5 minutes
- Add base nutrients: Micro, then Grow and Bloom (Classic), or Bonnie or Clyde (Bonnie and Clyde). Stir between each
- Add other additives such as Bud Booster and Sticky Bandit
- Adjust pH (soil 6.0-7.0, coco 5.5-6.5, hydro 5.5-6.0)
- Add Monkey Juice LAST (if using), after pH, and stir gently
- Apply to plants - water until 10-20% runoff
AutoPot growers: These mixing instructions are not for AutoPot systems. The only AutoPot feed chart we have right now is for PuurOrganics photoperiod plants. For any other line in an AutoPot, contact us directly for mixing instructions before you start.
Customer Reviews
Feed Schedules & Dosage
Micro 5-0-1 Feed Schedule
Week-by-week dosage for Micro. Always add Micro first when using the 3-Part system.
Vegetative Stage
| Week | mL/Gallon | mL/Liter |
|---|---|---|
| Week 1 | 1.25 mL | 0.33 mL |
| Week 2 | 2.5 mL | 0.66 mL |
| Week 3 | 2.5 mL | 0.66 mL |
| Week 4 | 2.5 mL | 0.66 mL |
Flowering Stage
| Week | mL/Gallon | mL/Liter |
|---|---|---|
| Week 1 | 5.0 mL | 1.32 mL |
| Week 2 | 5.0 mL | 1.32 mL |
| Week 3 | 5.0 mL | 1.32 mL |
| Week 4 | 5.0 mL | 1.32 mL |
| Week 5 | 5.0 mL | 1.32 mL |
| Week 6 | 2.5 mL | 0.66 mL |
| Week 7 | 4.0 mL | 1.06 mL |
| Week 8 | 1.25 mL | 0.33 mL |
| Week 9 | 0.0 mL | 0.0 mL |
Compatibility
Compatible Plant Types
Compatible Growing Mediums
Compatible Irrigation Styles
General Mixing Tips
- Use room temperature water (65-72°F / 18-22°C)
- Mix each nutrient thoroughly before adding the next
- Never mix concentrated nutrients together
- Check and adjust pH after all nutrients are mixed
- Store nutrients in cool, dark place away from direct sunlight
Frequently Asked Questions
What does Micro do for my plants?
When should I use Micro?
Do I mix Micro first?
What’s the correct mixing order with the 3-Part?
Can I run Micro by itself?
Is Micro compatible with my setup?
Is Micro good for vegetables, herbs, and houseplants?
Any quick tips to avoid issues?
Product Overview
Micro 5-0-1 is the foundational nutrient in the Cronk Classic 3-Part system, delivering essential calcium, iron, and trace minerals that enable plants to utilize nitrogen, phosphorus, and potassium from other fertilizers. Without adequate micronutrients, plants cannot access macronutrients regardless of availability.
Micronutrient deficiencies cause stunted growth, yellowing leaves, and poor yields even when NPK levels appear sufficient. Micro prevents these issues by supplying chelated iron, calcium, manganese, zinc, copper, boron, and molybdenum in plant-available forms that remain stable across pH ranges 4.0-6.5.
Key Benefits
- Provides complete micronutrient spectrum for enzyme activation and chlorophyll production
- Chelated iron (EDTA) prevents precipitation and stays available in hydroponic reservoirs
- Calcium strengthens cell walls and supports nutrient transport throughout the plant
- Works from seedling through harvest in the same 3-part system
Ideal For
Growers using the Classic 3-Part system in soil, coco coir, or hydroponic setups who want professional-grade nutrition with precise ratio control at every growth stage.
Complete Your Kit
Add these to get the full system.
Grow 2-1-6: Veg Stage Formula
High potassium for strong stems and lush foliage during vegetative growth.
- Optimized for vegetative growth
- High potassium for strong stems
- Balanced nitrogen for lush foliage
Bloom 0-5-3: Flower Formula
Zero nitrogen, high phosphorus for maximum bud development and resin production.
- Flowering stage formula
- High phosphorus for bud development
- Zero nitrogen prevents stretch
3-Part Kit - Micro, Grow, Bloom
Complete 3-part base nutrient system with Micro, Grow, and Bloom. Professional plant nutrition for all growth stages and systems.
- Complete 3-Part Base System
- Adjustable Stage Ratios
- Professional Grade
Legal Disclaimer
Important Information for Our Customers
At Cronk Nutrients, we are committed to providing high-quality liquid plant fertilizers suitable for a variety of horticultural applications. Our products are designed for legal and responsible use by home growers and gardening enthusiasts. We do not condone or promote the use of our products for illegal purposes.
Customers are responsible for adhering to their local and state laws regarding plant cultivation. It is the sole responsibility of the customer to ensure compliance with all applicable laws and regulations. Cronk Nutrients will not be liable for any misuse of our products in violation of any laws.
By purchasing our products, the customer acknowledges their obligation to comply with the legal standards set forth in their jurisdiction and agrees to use our products in accordance with these laws. Cronk Nutrients reserves the right to refuse service to anyone suspected of using our products for illegal cultivation.
Thank you for choosing Cronk Nutrients for your plant nutrition needs. Grow with confidence, grow legally.