What does pH tell you?
pH describes acidity or alkalinity and can affect nutrient availability. A reading outside the target needs review, but cannot identify the cause of a yellow leaf on its own.
What does EC tell you?
Conductivity indicates dissolved salts, including those already in the water and those added with nutrients. It does not distinguish calcium from sodium or prove that the mixture is balanced.
Which reference should you use?
Use the current program for your growing medium and week. Do not apply a number from a study or another brand directly to your tank: conditions and product concentrations may differ.
- Current doses and targets — Choose medium, week and volume; verify with your meters. Calculator in Spanish.
How do you check your meter?
Follow the manufacturer’s instructions for calibration, cleaning and storage. Use its specified reference solutions. Check unstable readings before adding any corrector.
In which order do you prepare and measure?
Measure the starting water. Add each nutrient separately to the water, mixing between additions. Check EC once mixed and adjust pH last. Never combine undiluted concentrates.
- Prepare the solution step by step — Use the calculator and follow the mixing order.
When might a pH regulator help?
If the finished solution needs its pH lowered, choose the regulator intended for your medium and follow its instructions. Measure first instead of deciding from your location or the plant’s appearance.
