Pioneering Hydroponics

Since 1976

What You Need to Know About Beneficial Microbes in Hydroponics

Give your hydroponic plants the push they need by providing them with beneficial microbes. They help to protect your plants from harmful microorganisms and to more efficiently use the nutrient solution.

Beneficial microbes colonise around plant roots and make them stronger, which in turn improve the overall plant health.

Hydroponic Plant Roots


What Kind of Beneficial Microbes Live in Your Plants?


1. Fungi

There are an estimated 5.1 million species of fungi in the world, some of which can grow in your plants’ roots and help them develop properly. Within fungi species, there are three main ones that are typical in hydroponic gardens:

  • Parasitic or Pathogenic. Pathogenic fungi actively look for plants to inhabit and will destroy them. They often start at the roots but some cause powdery mildew on leaves or grow in soil or substrate, like green and blue moulds. Others even grow in the submerged environment of the rhizosphere and need to be destroyed.

  • Neutral. These fungi don’t offer support or cause harm, they mostly feed on something that doesn’t derive from your plants.

  • Symbiotic or Beneficial. Beneficial fungi are mostly Mycorrhizal, which grow inside roots and supply nutrients. In exchange, they have access to water and protection.


2. Bacteria

The estimated number of bacteria is in the trillions but only a small amount tends to find their way into plant roots. Adding beneficial microbes in the solution first is one of the best ways of preventing harmful bacteria from taking hold.

Beneficial bacteria will quickly thrive in your plants, as bacteria multiply very quickly and can withstand harsh variations in food, water, and temperature. But you need to ensure you don’t just add a single type of bacteria, as even beneficial ones can overtake a system.

Complex colonies of beneficial microbes working against each other help to keep numbers balanced and controlled. This prevents destructive colonies from forming and expanding in numbers.


3. Mycorrhizae

Mycorrhizae prefer to live inside plant roots, helping to keep the entire hydroponic system and its plants healthy. They help plants efficiently retrieve the needed nutrients from water and they also prevent pathogenic fungi species from spreading in the roots.

Fungi have astonishing antibacterial secretions that help support plans and increase their overall pathogenic infection resistance. Plant Magic Granules can be added to soil or coco, providing Mycorrhizal fungi, more than 20 strains of microorganisms, and bio-stimulants.

Plant Magic Granules


How to Encourage Beneficial Microbe Growth

  • Consider Using Coco Coir. As a medium, coco coir is one of the best choices you can make to ensure the health of your beneficial microbes. As it’s made from coconut husks, it has a variety of hormones that help these microbes to reproduce and survive.

  • Have a Balanced Nutrient Temperature. Colder temperatures prevent bacteria from developing properly and might cause nutrient deficiencies. You need to make sure that your nutrient solution has a temperature around 18-21℃.

  • Avoid the Use of Hydrogen Peroxide. Hydrogen peroxide is sometimes used to kill harmful fungal and bacterial diseases and to keep the nutrient solution properly oxygenated. It doesn’t, however, distinguish between harmful and beneficial, and it will kill off the good microbes.

  • Limit the Use of Pesticides. Similarly to hydrogen peroxide, pesticides also kill off the beneficial microbes. Pesticides tend to have powerful antibiotic capabilities and will likely infiltrate your reservoir and cause more harm than good. Make sure to use a safe Bugicide that doesn’t harm plants, birds, or bees.

  • Include Beneficial Microbes in Foliar Spray. Including beneficial microbes in your foliar spray will provide plants with all the tools to thrive. Plants’ nutrient uptake increases and the beneficial microbes also help mildew and mould from growing on leaves.

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