irrigation fertigation.png

Raising a consistent high-yield crop is imperative to your company’s success and at Tetra we understand that. We know that master cannabis growers have tried, tested and perfected their methods - they have an innate sensitivity to the biological preferences of their plants. Our role is to give you the freedom and technology to develop and refine the growing process, so you can continue to grow the best plants possible.

The varying requirements for each plant, depending on the strain and growth stage, is what presents itself as a challenge to most growers. The solution lies in a customized, automated and integrated irrigation and fertigation system. An automated system provides your cannabis crops with precisely the water and nutrients they need, when they need it.


Our cannabis irrigation systems include all the components needed:

  • prefiltration
  • water storage
  • fertigation
  • PVC supply and drain
  • benchtop irrigation
  • disinfection for recirculation systems

A controlled water management system not only ensures precision with water dosing, but also recirculation and water purification.


Automated fertigation systems work by pumping prefiltered water, typically from a day storage tank, into a small mixing chamber. Nutrients and pH adjusters are added to the water in the mixing chamber where pH and EC measurements are taken until the solution matches the grower’s desired conditions. Once ready, the solution is aerated and has its flow measured. The software controlling the irrigation cycle will then record the data from that cycle and allow it to be graphed to the grower’s conditions. Controlled fertilizer injectors are a necessity for large cannabis cultivation facilities looking to increase yields and uniformity; manual and simpler systems are unable to provide the consistency and homogeneity needed for facilities growing multiple strains at different lifecycles.

Tetra systems have the ability to incorporate full recirculation of plant leachate and runoff. By designing the drain collection, water storage, and fertigation systems, the recirculation component is able to be incorporated holistically. A typical recirculation system will collect leachate into a tank. From there the “dirty” water will be run through a filter and UV sanitization system. The UV system will dose the “dirty water” with 254 nm light (UV-C) permanently disinfecting it, and then pump it out to a fertilizer storage tank. These systems see fast returns on investment due to fertilizer and water savings.

Automating irrigation and integrating it into the main control system of your indoor grow, is yet another way to improve crop yields and decrease waste and costs.