CO2 Tank 20lb (empty)

*most people pair this with regulator and monitor/timer

Carbon dioxide needs to vary throughout the life of the cannabis plant. CO2 should be highest during the vegetative stage and early in flowering, although levels should be tapered off during the final weeks before harvest.

• Seedling stage: Maintaining CO2 levels between 600-1200 PPM can increase root growth and plant development, especially with higher light levels. If the CO2 concentration is outside of this range, plant growth will be slow and less vigorous.
• Vegetative stage: As the plant matures and the photosynthesis process becomes more robust, raising CO2 levels to around 800-1500 PPM can support faster and healthier growth. If the CO2 concentration is outside of this range, plant growth will diminish.
• Flowering stage: CO2 levels can be maintained at the same range as the vegetative stage—around 800-1500 PPM. However, careful monitoring is needed as higher CO2 levels can sometimes lead to higher temperatures, which can harm the flowering process.
• Final weeks of flowering: During the last couple of weeks of the flowering phase, it’s recommended to lower CO2 levels back down to around 400-800 PPM. This helps to ensure the plant isn’t taking in too much CO2 and also helps slow down nutrient uptake.