To make a DIY hydroponic solution at home, you'll need:
- Filtered Water
- pH adjuster (potassium hydroxide or phosphoric acid)
- Nutrient salts
- Container
To make the solution,
- Dissolve the nutrient salts (both macro and micronutrients) in water according to the instructions on the package.
- Check the pH of the solution; it should be between 5.5 to 6.5. Add the pH adjuster if needed until the water reaches a pH of 5.5-6.5.
- After you've set the pH level, you should check the electrical conductivity. This is the proportion of nutrients to water in terms of EC. You can use an electronic EC meter to verify the readings. The EC value must be between 0.8 and 3.0. 1.5 to 2.5 is usually a good range for most situations. Add more water if the EC is too high.
- Stir well and pour into your hydroponic system.