How to increase your indoor yield with CO2

Did you know? You can increase your yield by simply supplementing CO2 in your grow tent or grow room! Some say that increasing the CO2 in your grow environment can increase your yield by 100% or more. While other studies show that CO2 injection into your environment can see a 40% increase. […]

How to increase your indoor yield with CO2

Did you know? You can increase your yield by simply supplementing CO2 in your grow tent or grow room!

Some say that increasing the CO2 in your grow environment can increase your yield by 100% or more. While other studies show that CO2 injection into your environment can see a 40% increase. Either way, anything from 30% should make you smile. Growth in veg is prolific and yields in flowering are explosive.

The math is simple: If you would normally achieve 100 units in a grow cycle, you will now get between 130 and 200 units from the same square meterage of grow space. That's a great return!

Indoor gardening with CO2 can be tricky, as too much could kill your plants.

Are you wondering how to increase your yields with CO2?

We have a range of tools and equipment to monitor, dose and maintain optimum CO2 levels.

Generally speaking, we have about 350-400ppm at sea level here in South Africa. (This increases gradually due to global warming)

Most popular plant varieties can tolerate and make use of CO2 levels from 1200-1500ppm max. This is also determined by the plant variety, strain, genetics and growing conditions. Best advice would be to go easy, monitor CO2 & potential stress. CO2 supplements can be used for plants in hydroponics or soil based grow mediums.

Types of CO2 dosing & enrichment methods:

CO2 Generators

CO2 burners or propane burners

They generate CO2 by burning up oxygen in the environment. These would normally be connected to a controller which would turn the device on and off when required.

TNB Naturals

TNB Naturals, an all natural CO2 product manufactured in Canada. 

TNB Natural's flagship product "The Enhancer" is a safe & easy to use CO2 product. It generates no heat as apposed to other methods. It's potency makes it a very popular solution for indoor grow tents and gardens as one canister can dose an area of 3.6 x 3.6m. It will produce CO2 for about two weeks, gently tapering off. The Enhancer refill pack is now available and so most growers grab one canister and 2-3 refill packs for their grow. Using The Enhancer is easy! Simply add 1 litre of warm water to the container, shake, peal back the label on the lid and enjoy the benefits.

CO2 Canisters, CO2 Regulators & CO2 Controllers

To setup a long term CO2 solution, one would typically need three items.

  1. Canister of CO2 which would be connected to a CO2 Regulator.
  2. CO2 Regulator - Regulators have a built in solenoid valve which allows for accurate control and dosing when turned on and off. The flow rate can also be controlled on the regulator. Ideally you would want to connect your CO2 regulator to a CO2 Controller.
  3. CO2 Controller - CO2 controllers use infrared sensing technology to determine the amount of CO2 in your grow space. You set the required amounts of CO2 on the device initially. The Controller will turn the CO2 regulator on and off as required to achieve your desired CO2 levels. You would want the controller to function during the lights on period. If the controller does not allow for setting or sensing to do so automatically you would need to connect it to a timer or a Gavita Master Controller & ECM Module.


There's always the home method of yeast and sugar however we don't recommend it as it is not a sustainable solution, attracts pests, stinks, and is not effective comparing to any of the other methods which are available to increase the CO2 in your grow room or grow tent. 


**IMPORTANT: Be careful of freezing your tank. Too much flow can freeze up your regulator and potentially cause an explosion.

**Increased CO2 allows for increased nutrient uptake.

Maximize your yields this season - Supplement CO2!

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Want to get growing with co2?

Check out our favourite co2 Enhancers in South Africa

Sold out -11% sale
Co2 Regulator R 1,250.00 R 1,400.00
An aquarium or hydroponic system is not complete without a Co2 Regulator to control the release and absorption of carbon dioxide. To guarantee maximum plant growth and a wholesome aquatic environment, this high-quality regulator is made to provide precise control over Co2 levels. The Co2 Regulator is constructed from sturdy materials to last for a long time even under rough use. As it is small and well-organized, setting it up and adjusting it to your liking is a breeze. The Co2 Regulator is the top pick for hydroponic growers and aquarists of all skill levels because to its extensive features and user-friendly design. Whether you want to speed up plant development or design a breathtaking underwater environment, this trustworthy and adaptable tool is the way to go. Among the many useful functions of the Co2 Regulator are: Fine-tuning of carbon dioxide concentrations Built to last, with sturdy materials A slim and lightweight build makes for a quick set up. Indicia and dials are clearly labeled and simple to read. It can be used in hydroponic and fish tanks.
-29% sale
co2 Controller & Probe R 3,995.00 R 5,590.00
The Ram CO2 Controller and Probe monitors CO2 levels within the grow room and constantly adjusts the amount of CO2 to maintain ideal conditions for optimal plant growth. It utilizes the latest microprocessor and infra-red technology to monitor and control the levels of carbon dioxide in your growing area.It can also be used with either bottled CO2 gas or with a propane or natural gas burning CO2 generator. In addition to this, it can be interfaced to most external thermo/hygrostats for improved environmental control and is also compatible with the Evolution Digital Fan Speed Controller.The Ram Controller and Probe are the most advanced of it's kind and has more features and functionality than any other product on the market.Evolution Carbon Dioxide Analyser utilizes non-dispersive Infra-Red sensing technology for fast accurate CO2 monitoring. Combined with exquisite design and a groundbreaking low price the sensor is highly accurate and less than half the price of similar products on the market.Evolution CO2 Regulator:This Regulator is connected to your CO2 bottle and wired into your controller.Carbon Dioxide:The ambient level of CO2 in the air is 300-400ppm. Fast-growing plants in your grow room or glasshouse can use all the available CO2 in less than an hour slowing photosynthesis which will bring your growth to a virtual halt. Therefore, Carbon Dioxide is one of the most important factors in an indoor grow room or greenhouse.Photosynthesis:Photosynthesis is the term used to describe the process by which plants combine CO2 molecules with water molecules to form complex sugars. There is a resultant spare oxygen atom which is released back into the air while the sugars are further processed by the plant to form natural polymers for growth. Can be used with or without Evolution CO2 Analyser Intelligent Multi Stage CO2 dosing Fan Control Expandable system DayLight/Night sensor Fully Programmable Multi-Language support (English, French, German, Italian and Spanish language options) Microprocessor controlled Latest Solid State NDIR sensor option Full 1-year warranty co2 for grow tent or grow room. See our article: How to increase your indoor yield with CO2
TNB Naturals Co2 Enhancer from R 314.00
The Enhancer is an all-natural CO2 generator made from 100% organic ingredients. This safe and effective solution for CO2 supplementation creates a blast of CO2 that can reach 1200 PPM in a 12x12x12 foot area for up to 2 weeks. Activate The Enhancer by adding 1 litre of warm water, placing the lid back on, removing the sticker on the lid, covering the small hole with your thumb, and giving the bottle a quick shake. The Enhancer works off the natural phenomena known as photosynthesis and will begin to disperse CO2 within a few minutes of being activated. For optimal performance shake The Enhancer once a day in a 12x12x12 foot area and once every second day in a 6x6x6 foot area. The simplicity and ease of use, along with the fact that The Enhancer does not produce heat or require any additional equipment, makes this the future of CO2 production. The Enhancer now comes in a convenient refill pack! The TNB CO2 Refill Pack gives growers the ability to reuse their existing Enhancer bottle while saving money and reducing their environmental footprint at the same time. Simply empty the contents of the original bottle and give the bottle a quick rinse. The contents of the Refill Pack can be added and instantly CO2 is once again available for use. Boosting plant production and improving overall health, CO2 is an essential element of photosynthesis and often one of the most overlooked components of plant growth. The TNB CO2 Refill Pack consists of the same great recipe while combining convenience and an amazing option for those looking for passive CO2. Research has shown that plants can use up to five times the CO2 that naturally occurs in the air. With The Enhancer known for delivering levels of CO2 only comparable to a propane or natural gas burner, there is no question many growers will be turning in their tanks and introducing CO2 with this safer and all-natural method.
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