Everything You Need to Know About Hydroponics Fertilization – Our Guide

Plants require nutrients to grow, absorbing nutrients through the roots when dissolved in water. When it comes to fertilizers for hydroponics, all the essential ingredients should be in the fertilizer simply because there is nothing to be extracted from soil. 

When fertilizing hydroponics, here are some of the most important things you should know:

Nutrient Solutions

For hydroponics solutions, you can get ready-made solutions or you can make your own from scratch. You can also buy nutrients in two or three parts, which is advisable for individuals who have small gardens. A two or three-part solution lets you be more flexible. It also enables you to customize the nutrients to the type of plant that you’re growing. 

  • Mineral fertilizer – a mineral fertilizer contains mineral salts, which are acquired from natural raw materials. The disadvantage of this type of fertilizer is that its production consumes a lot of energy and resources. 
  • Organic fertilizer – the nutrients in this type of fertilizer is either from a plant or an animal. If you’re looking for a more sustainable approach to fertilize your hydroponics, then this is the right fertilizer for you. 
  • DIY fertilizer – you can make your own fertilizer by using organic kitchen waste. 

Your Electrical Conductivity (EC) Levels

To know the nutrient concentrations in your solution, you need to know your specific EC levels. Do a reading and convert it into dissolved solids. By doing so, you will be able to mix the right solution, and it will also enable you to monitor it effectively over time. 

Keep in mind that the EC levels will not go down on their own. Your EC levels should be stronger, as your plants absorb water faster than they absorb nutrients. Your EC levels are also crucial because this will help you prepare the solutions, monitor how much nutrients are in it, and dilute them as needed. 

However, your EC meters are not the answer to everything. The meter cannot distinguish the various compounds of the nutrients that you put in it.

How Often Should You Fertilize

The flushing of your systems will determine how frequent you need to fertilize your hydroponic plants. That’s why it’s essential that you test the levels of your system and wait for things to stabilize. A sign of stabilization is when your water level starts to decrease because the plants are already absorbing the fluids and nutrients. Additionally, you should be mindful of your water levels, which means that you have to check it regularly to ensure that your plants have adequate water levels. 

When adding water to your tank, log it down, as this will help you determine when you need to flush your system. 


Hydroponic growth solution takes a lot of work, but if you want to grow your hydroponics correctly, you need to invest time and effort into fertilizing it. By following the guidelines in this post, hopefully you’ll be better able to grow your plants using hydroponics. Fortunately, you can easily get liquid plant food on the market today.

If you’re looking for hydroponic growth solutions in the UK. Get in touch with us to see how we can help.