pH Meter for Hydroponics: How to Choose, Calibrate and Care for One
How to choose a pH meter for hydroponics, calibrate it with two buffers, store and clean the probe, and fix drifting readings, with target pH and EC numbers from extension sources.
Category: Nutrients & pH/EC
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.
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.
Exact grams per gallon and litre, the right mixing order, A and B stock tanks, and when to top up or replace your nutrient solution.
Which pH Up to use, how to dose in small steps, where to stop for each crop, and how to stop hydroponic pH from dropping again.