How to Acidify Hydroponic Water: A Senior Agronomist’s Guide to Perfect pH
To acidify hydroponic water, you must carefully add a pH down solution, typically phosphoric acid, sulfuric acid, or nitric acid, in small, incremental amounts while continuously monitoring the pH level with a reliable meter until the desired range (usually 5.5-6.5 for most plants) is achieved. I remember my first few seasons growing lettuce in a…