Cal-Mag Deficiency in Hydroponic & Aeroponic Systems: Signs, Causes, and Fixes
Why cal-mag deficiency hits RO and soft-water hydro/aero systems harder than soil, how to tell calcium and magnesium deficiency...
aeroponics
Growing Knowledge
The Aero-Gro Grow Blog
Science, techniques, and practical guides from 30 years of soilless growing experience.
cannabis
VPD Chart for Indoor Growing: The Number That Matters More Than Humidity
VPD targets by growth stage, a temperature/humidity-to-VPD lookup table, what goes wrong at each extreme, and why VPD matters e...
aeroponics
Why Is My Leaf Doing That? A Hydro & Aero Diagnosis Guide
A symptom-first leaf diagnosis guide for hydroponic and aeroponic growers — nutrient deficiencies, toxicity, pH lockout, and th...
aeroponics
Nutrient and pH Recommendations for Aeroponic Cannabis: An Autoflower Cheat Sheet
EC and pH targets by growth stage for autoflowering cannabis in aeroponics, misting cycle guidance, strain-type adjustments, an...
cannabis
DWC for Cannabis Growers
How deep water culture works for cannabis, EC and pH targets by growth stage, and the reservoir habits that keep a DWC system h...
reference
TDS and pH Levels in Drinking Water
What TDS and pH readings mean for your tap or well water, EPA and WHO guidance, and why it's worth testing your source water be...
lighting
Daily Light Integral (DLI) Chart for Commonly Grown Vegetables
DLI target ranges by crop, how to calculate your own DLI from PPFD and photoperiod, and how to use the numbers to plan your lig...
nutrients
EC Conversion Chart: mS/cm, µS/cm, PPM, and CF
Convert between EC, µS/cm, PPM (500 and 700 scale), and CF with this quick-reference chart — plus the formulas if you'd rather ...
Recommended Nutrient Solution Parameters for Hydroponic Herbs
EC, PPM, and pH targets for the herbs growers ask about most — basil, mint, cilantro, and more — plus how to read microsiemens,...
What's the Best pH for Hydroponics? (Crop-by-Crop Guide)
pH controls whether your plants can absorb nutrients at all. Here's the ideal range and why it matters.
Root Rot in Hydroponics: Causes, Signs & Fixes
Healthy roots are white and firm. If yours are brown and slimy, here's how to fix root rot fast.
The Best Vegetables to Grow Indoors (for Beginners)
Start with crops that are easy to win with. Here are the best vegetables for indoor beginners.
Indoor Growing for Beginners: The Complete Guide
Everything a first-time indoor grower needs to know, in one place. Start here.
How Far Should Grow Lights Be From Plants?
Light distance makes or breaks indoor growing. Here's how to get it right for every stage.
Hydroponics vs Aeroponics vs Soil: Which Should You Choose?
Three ways to grow, one right choice for you. Here's an honest comparison to help you decide.
Why Are My Plant's Leaves Turning Yellow? A Grower's Guide
Yellow leaves are your plant trying to tell you something. Here's how to read the signs and fix the real cause.
Why Does My Hydroponic pH Keep Drifting?
pH that won't sit still is one of the most common hydroponic headaches. Here's why it happens — and how to actually fix it.
Can You Use Tap Water for Hydroponics? pH, EC & TDS Explained
It's the first question almost every new grower asks: can I just use tap water for hydroponics? The honest answer is — sometime...
PAR vs PPFD vs DLI: Grow Lights Explained Simply
Grow-light marketing loves throwing acronyms at you — PAR, PPFD, DLI — usually to justify a higher price. But these three numbe...
Do You Need RO Water for Hydroponics?
Ask ten hydroponic growers whether you need reverse osmosis (RO) water and you'll get ten different answers. The truth is simpl...