Indoor cannabis growing has become increasingly popular, and growers are always seeking ways to maximize their yields and speed up the growth process. One method that is commonly used to achieve this goal is CO2 enrichment. CO2 is heavier than air and so it plummets and collects down, which means that it can only be utilized by plants during light hours. When used correctly, CO2 can dramatically increase the yield and potency of cannabis plants. In this article, we will discuss the ideal CO2 levels for indoor cannabis growing, as well as the pros and cons of using CO2.
CO2 Enrichment – Definition and Benefits
CO2 enrichment is a process that involves increasing the levels of CO2 in the air surrounding the plants. This is achieved by introducing CO2 into the grow room. CO2 is a natural part of the air, and plants use it during photosynthesis to produce energy. By increasing the levels of CO2, plants can absorb more of it and produce more energy, resulting in faster growth and bigger yields.
Pros of Adding CO2 for Growing Cannabis
One of the most significant advantages of using CO2 is that it can lead to bigger yields and faster growth. Cannabis plants that receive higher levels of CO2 can produce up to 30% more buds than those grown in normal atmospheric conditions. Additionally, the increased CO2 levels can help plants to stand higher temperatures, which can be beneficial in grow rooms that are warmer than optimal. Finally, CO2 enrichment is extremely effective when used in conjunction with HPS and LED grow lights, resulting in even faster growth rates and larger yields.
Cons of Using CO2 for Growing Cannabis
One of the main concerns with using CO2 for growing cannabis is the safety and security issues that arise when it is used in a living space. High levels of CO2 can be lethal to humans, and therefore, it is essential to have a danger alert system that can notify growers if the levels exceed safe limits. Additionally, it can be difficult to control CO2 levels, and it requires refilling of the CO2 container regularly. CO2 enrichment is only suitable for medium to large grow rooms, as it is not cost-effective or practical for small grow spaces. Finally, there is a lack of knowledge about what CO2 level fits what plant at what stage, which can make it challenging to achieve optimal results.
What Growth Stage Should I Use CO2 for Growing Cannabis?
CO2 enrichment is most effective during the vegetative and early flowering stages of cannabis growth. During these stages, the plant is actively producing new leaves and branches, and increased CO2 levels can help to boost growth and yield. However, during the later flowering stage, CO2 enrichment is less effective, as the plant’s energy is focused on producing buds rather than new growth.
How to Monitor and Control CO2 Levels Inside a Medium Grow Room
To effectively use CO2 enrichment, it is essential to monitor and control the levels of CO2 in the grow room. This can be achieved by using CO2 tanks and controllers that have CO2 sensors and valve regulators for the tank. The CO2 sensor will monitor the levels of CO2 in the air, and when the levels drop below a predetermined threshold, the valve regulator will release CO2 into the grow room.
The Ideal CO2 Levels for Indoor Cannabis Growing
The ideal CO2 levels for indoor cannabis growing are between 1000-1500 parts per million (ppm) during the vegetative stage and between 1200-1500 ppm during the flowering stage. These levels provide enough CO2 to the plants without reaching dangerous levels for humans. It is essential to monitor the CO2 levels regularly and adjust the levels accordingly to ensure optimal results.
CO2 enrichment is a popular method of increasing the yield and potency of indoor cannabis growing. While it has its pros and cons, it can be a useful tool for growers who are looking to maximize their yields and speed up the growth process. However, it is crucial to take safety precautions when using CO2, particularly in a living space, and to monitor and control the CO2 levels in the grow room to avoid any health risks.
It is also important to note that CO2 enrichment is not the only method of increasing yields and improving cannabis growth. Other factors such as light, humidity, temperature, and nutrients also play a significant role in the growth of cannabis plants. Therefore, growers should consider a holistic approach to indoor cannabis growing that takes all these factors into account.
