Field notes
13 entries on file.
- №0012026-05-19
The Economics of Home Hydroponics — Does It Actually Save Money?
We ran the numbers on a 2×4 ft DWC tent producing 50 lettuce heads and 8 kg of tomato annually. Capex, electricity, nutrients, water, time. Honest answer is in the spreadsheet.
- №0022026-09-23
How Far Should You Hang Your Grow Light? The Distance Math Explained
Learn the inverse-square-law math behind grow light hanging distance, how PPFD targets shift across growth stages, and how to set height correctly for leafy greens vs fruiting crops.
- №0032026-09-23
The Hydroponic Kitchen Herb Garden: Which Herbs Actually Thrive Together
A data-driven guide to building a hydroponic kitchen herb garden — which herbs actually thrive, their pH/EC/DLI needs, and how to group species with different requirements in one system.
- №0042026-07-29
The Ultimate Guide to Hydroponic Nutrient Deficiencies: Identify & Fix
Learn how to identify, diagnose, and fix common hydroponic nutrient deficiencies. A complete visual and technical guide for mobile and stationary hobbysts.
- №0052026-09-23
Hydroponic Reservoir Sizing Guide — The Math Behind Volume, Buffer & Refills
How to size a hydroponic reservoir correctly — gallons-per-plant math, evaporation and uptake rates, buffer capacity, and the sizing mistakes that wreck EC and pH stability across DWC, NFT, drip, and ebb-and-flow.
- №0062026-07-30
Hydroponic ROI Reality Check — Why Most Small-Farm Projections Are Wrong
Aspiring semi-commercial growers routinely underestimate labor, electricity, and distribution costs while overestimating yield and retail price capture. Here's how to build a breakeven estimate that survives contact with reality.
- №0072026-07-30
Root Rot Prevention Guide — Stop Pythium Before It Starts
Root rot is the #1 cause of failed hydroponic grows. Learn the reservoir temperature, dissolved oxygen, early symptoms, and prevention checklist that keep roots healthy.
- №0082026-09-23
Root Zone Temperature and Dissolved Oxygen — The Overlooked Variable
Warm reservoir water holds less dissolved oxygen — a physical chemistry fact most growers never check. See the real DO-vs-temperature numbers and how to fix it.
- №0092026-05-19
A Seasonal Grow Calendar for Indoor Hydroponics — What to Plant and When
Indoor hydroponics frees you from frost dates, but seasonality still matters — for daylight, room temperature, electricity cost, and what you actually want to eat. A month-by-month plan.
- №0102026-09-23
Small-Space Hydroponics on a Low Budget — Wick vs. Vertical Tower
Choosing a hydroponic system for a small apartment or tight budget? Compare wick systems (no pump, cheapest entry) and vertical towers (best plants per square foot).
- №0112026-05-19
The Three Numbers That Kill Most Hydroponic Builds
Why do hydroponic plants die? We analyzed 200+ failed builds and found three silent killers. Learn how to manage Dissolved Oxygen, Reservoir Temp, and DLI to save your grow.
- №0122026-05-19
Why Most Indoor Tomatoes Fail — Six Reasons We See Every Season
Indoor tomato is the holy grail and the most failed crop in home hydroponics. We pulled the patterns from a season of failure photos and questions. Six causes account for almost everything.
- №0132026-05-15
Why We Built Rootless Farm
Hydroponics works. The information about it doesn't. Here's how we're trying to fix that — in 10 languages, with AI doing the boring parts.
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