Kratky Method for Hydroponic Lettuce: Complete Passive Guide
Home > Hydroponics > Kratky Method for Hydroponic Lettuce: Complete Passive Guide Last Reviewed: August 27, 2026 | Author: Faisal Habib | Fact-Checked: Lab and Field Verified | Expert Reviewer: Wara Danish, MSc Plant Biology Difficulty: Beginner-Friendly | Power: Zero Electricity | Water Volume: 1 Gal/Head | Turnaround: 35 Days | Target EC: 1.2–1.4 mS/cm | pH: 5.6–6.0 ⚡ Quick Answer: How to Grow Kratky Hydroponic Lettuce Fill a 1-gallon opaque container with nutrient solution (EC 1.2–1.4, pH 5.8) touching the bottom 0.5 inches of a net cup. As roots drink, an expanding air gap oxygenates the plant without pumps, finishing in 35 days. 📊 Master Kratky Lettuce System Specifications…