CO2 gen. via bacterial growth.

[ntezbngggreen]

The ads are aplenty featuring the co2 in a can that uses a bacterial/yeast process to produce co2 as a byproduct. Not familiar with the cost, but heard it yields amounts only sufficient for small setups.
Anyone?

 

[SpeesCees]

The ads are aplenty featuring the co2 in a can that uses a bacterial/yeast process to produce co2 as a byproduct. Not familiar with the cost, but heard it yields amounts only sufficient for small setups.
Anyone?

Asfar I know you will lose 99% CO2 by your ventilation.
Think it over to give your plants CO2 on the roots !?