Can You Use Tap Water for Hydroponics? Chlorine, Hardness and EC
Tap water works for most hydroponic systems once you deal with chloramine, high alkalinity, starting EC, sodium and hardness. Here are the limits and fixes.
Posts by A. Bashar
Grams of seed per 10x20 tray for 18 microgreens, from Johnny's trial data and Utah State Extension, plus how to scale to any container.
How Many Hours of Light Do Seedlings Need? (14–16 Is the Sweet Spot)
Seedlings need 14–16 hours of light and a dark night. Here is how light intensity changes the hours, with crop targets and a timer schedule.
How to Grow Microgreens Without Soil (Mats, Coco and Hydroponic Trays)
How to grow microgreens without soil on hemp, jute or coir mats: trial results, seed rates, when to feed, step-by-step setup and food safety.
Change hydroponic water about every 2 weeks in small recirculating systems. Schedules by system, warning signs and a step-by-step change routine.
Do You Need Cal-Mag in Hydroponics? Signs, Targets and Doses
When hydroponic plants need cal-mag, how to spot calcium or magnesium shortages, and how much calcium nitrate or Epsom salt to add.