Recirculation Basics – Part 3

As we’ve learned in parts 1 and 2 of this series, in order to grow successfully in a hydroponic system, there are certain basics that always need to be kept in check, otherwise plant performance inevitably suffers. After covering source water, nutrient and pH, world-renowned hydroponics expert Michael Christan breaks down the final ingredients of a healthy indoor growing environment: oxygen, light, temperature, humidity, air circulation and CO2.