Learn how pH and water quality affect plant growth. Discover the best ranges, how to adjust pH, and whether tap or RO water suits your setup.

pH & Water Quality

Master EC and PPM — learn how to measure nutrient strength, set target ranges, and adjust your feeding for optimal plant performance.

EC/PPM & Nutrient Strength

Optimize your growing environment — from light cycles and intensity to temperature, humidity, and CO₂ levels for healthier, higher-yielding plants.

Light & Environment

Explore soil, coco, and hydro systems — learn how each medium works, how to feed properly, and how to choose the right setup for your grow.

Grow Mediums & Systems

Explore the science behind healthy plant growth. Learn how photosynthesis, nutrients, and biological processes power your garden — from chlorophyll and carbohydrates to Nitrogen, Phosphorus, and Potassium.

Plant Science & Nutrition

Have a question about feeding schedules, product use, or an order? Our grower support team is here to help.

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Cronk Nutrients Growers Knowledge Hub

Explore the science behind healthy plants. Learn how pH, EC, lighting, and grow mediums affect nutrient uptake and overall plant growth.

Grow Science | Cronk Nutrients Plant Health Fundamentals

Grow Science

Choosing the Right Cronk Nutrients for Your Grow

Understanding NPK: What Those Numbers on Your Fertilizer Really Mean

Liquid Nutrients vs. Dry Nutrients: Which Is Best for Your Grow?

What Does CalMag Do for Plants?

Nutrient Basics

Choosing the Right Grow Medium: Soil, Coco, or Hydroponics?

What Size Pots Should I Use for My Plants?

Grow Setup

Top 10 Beginner Grow Mistakes (and How to Avoid Them)

First Grow Tips

Getting Started

pH & Water Quality: Why Balance Matters

Understanding EC & Nutrient Strength: A Grower’s Guide

EC & PPM in Organic vs Salt-Based Nutrition: What Every Grower Must Know

Understanding Grow Lights for Cannabis: A Beginner’s Guide

Growing Indoors vs. Outdoors: Which Is Best for Your Grow?

The Science of Growing Vibrant Basil: Choosing the Right Medium, Nutrients & Microbes

The Best Pot Size and Growing Medium for Autoflowers: A Complete Grower’s Guide

Choosing the Right Grow Medium for Cannabis: Soil, Coco, or Hydro?

Photosynthesis & Carbohydrates: Powering Plant Growth and Fruit Quality

How Magnesium Powers Photosynthesis and Plant Growth

Unlock Your Plants’ Potential: Understanding Nitrogen, Phosphorus, and Potassium

The Science of Growing Beefsteak Tomatoes: From Seed to Harvest

The Science of Flowering Nutrition: Choosing the Best Fertilizer for Bloom Growth

Grow Guides

Cronk Nutrients – Classic Line Basic Feed Chart Guide

Mixing & Usage

Cronk Nutrients 3-Part Base Mixing Guide: Master Feeding for Maximum Growth

Product Guides

Classic Line

Cronk Nutrients – Autoflower Line Basic Feed Chart Guide

Cronk Nutrients – Autoflower Line Intermediate Feed Chart Guide

Cronk Nutrients – Autoflower Line Expert Feed Chart Guide

Bonnie & Clyde Mixing Guide: Autoflower Nutrients 101

Bonnie & Clyde (Autoflower Line)

Introducing PuurOrganics: A Cleaner Path to Organic Liquid Fertilizer Success

Cronk Nutrients – PuurOrganics Feed Chart Guidance

PuurOrganics

CalMag Mixing Guide: Strengthen Growth & Prevent Deficiencies

CalMag 2-0-0

How to Use a Bloom Booster to Increase Bud Size and Yield

Bud Booster 0-1-3 (Flower Enhancer)

Sticky Bandit Mixing Guide: Boost Terpenes, Flavor & Potency

Sticky Bandit 0-0-1 (Resin Enhancer)

Additives & Boosters

Cronk Nutrient Lines

Feeding Charts for Cronk Nutrients Lines

Feeding & Schedules

Cronk Nutrients SDS Sheets

SDS & Docs

Grower Resources

Grower Glossary – A

Grower Glossary – B

Grower Glossary – C

Grower Glossary – D

Grower Glossary – E

Grower Glossary – F

Grower Glossary – G

Grower Glossary – H

Grower Glossary – I

Grower Glossary – J

Grower Glossary – K

Grower Glossary – L

Grower Glossary – M

Grower Glossary – N

Grower Glossary – O

Grower Glossary – P

Grower Glossary – Q

Grower Glossary – R

Grower Glossary – S

Grower Glossary – T

Grower Glossary – U

Grower Glossary – V

Grower Glossary – W

Grower Glossary – X

Grower Glossary – Y

Grower Glossary – Z

Grower Terminology

What order should I mix Cronk Nutrients in?

When should I start feeding my plants Cronk Nutrients?

Can I mix all Cronk Nutrients together?

How often should I feed my plants Cronk Nutrients?

Do I need to use CalMag with Cronk Nutrients?

Which Cronk Nutrient system should I use for my grow?

Can I use Cronk Nutrients with other brands?

Can I use Cronk Nutrients in DWC or hydroponics?

Can I use Sticky Bandit and CalMag with PuurOrganics?

Is there anything else I should buy to help my plants thrive?

How can I prevent nutrient lockout when feeding my plants?

Can I use Cronk Nutrients in a drip irrigation or auto-watering system?

Can I foliar feed with Cronk Nutrients?

How do I transition from vegetative to flowering nutrients?

Should I use plain water between feedings?

Why are pH and EC important in plant growth?

Feeding & Mixing FAQ

Why are my plant leaves turning yellow?

Why are my leaves curling up or down?

My plants have brown spots on the leaves—what’s happening?

Why is my plant’s growth uneven or stunted?

Why are my buds small and airy?

My plants look pale even though I’m feeding—what’s wrong?

Why are my plants drooping after watering?

My pH keeps fluctuating — how do I fix it?

Why are my stems purple or red?

Troubleshooting & Deficiencies

How should I store Cronk Nutrients?

Can I store Cronk Nutrients in my garage or shed?

Can Cronk Nutrients go bad if not used for months?

What is the shelf life of Cronk Nutrients?

How long can I store pre-mixed Cronk Nutrient solution?

Storage & Product Safety

Is there a feed chart for Cronk Nutrients?

How do I know which Cronk Nutrients feeding chart to use?

How do I measure nutrients accurately for my grow?

What EC and PPM levels should I target with Cronk Nutrients?

How can I adjust Cronk Nutrients feed charts for smaller or larger plants?

How do I use Cronk Nutrients in coco coir vs. soil?

Do I need to flush when using Cronk Nutrients?

Can I use Cronk Nutrients with compost teas or organic boosters?

How do I convert Cronk Nutrient dosages from liters to gallons?

What do the numbers mean on the Cronk Nutrients feed charts?

Feeding Charts & Measurements

What products does Cronk Nutrients offer?

Can I use Cronk Nutrients on non-autoflowering plants?

Can I use Cronk Nutrients on any type of plant?

What do the numbers on the bottles mean?

General Product FAQ

What should I do if my package is delayed or tracking hasn’t updated?

Can I get a discount code for Cronk Nutrients?

How can I apply for a Cronk Nutrients sponsorship?

My Cronk Nutrients arrived frozen — what should I do?

How long does it take for my Cronk Nutrients order to ship?

My tracking number says “Label Created” but hasn’t updated — what does that mean?