Hydroponic Knowledge Base
Articles, guides, and science-based discussions on hydroponic nutrients.
Nutrient Science
Understanding EC and PPM in Hydroponics — The Complete Guide
What is EC? What is PPM? Learn how to measure nutrient concentration, which target values to use for different crops, and why EC drift tells you more than you think.
ECPPMNutrient StrengthMeasurement
HydroNutrientCalc Team
Apr 10, 2026•7 min read
Feature Guide
How to Save and Manage Your Custom Hydroponic Formulations
Learn how to perfectly manage, save, and recall your customized hydroponic nutrient recipes using HydroNutrientCalc. Ideal for keeping track of seasonal formulas and different crops.
Save RecipesManagementOrganizationCloud Storage
HydroNutrientCalc Team
Mar 14, 2026•5 min read
DIY Nutrients
Preparing your own low cost A+B generic hydroponic nutrients at a small scale from raw salts
Learn how to easily create low-cost hydroponic nutrient solutions using basic raw salts like Calcium Nitrate, Epsom Salt, and MKP. Save money compared to buying commercial A+B mixes.
A+B SolutionRaw SaltsCost-SavingDIY
HydroNutrientCalc Team
Mar 14, 2026•6 min read