CO2 Tabs Extra Slow Release 60 Tabs
These CO2 Tabs extra slow release frizzy tablets contain a high quantity of Carbon Dioxide: put one of them into a glass of water in the grow box and it will release the CO2 in the air for the foliar uptake or you can put them directly into the nutrient solution for root uptake. Apply twice weekly for optimal results, and preferably during the whole growing cycle of your plants.
We suggest to use two tablets into a glass of water for spaces of one meter square, switching off the extractors fans for a few hours.
Adding CO2 short before the dark period doesn't give any results! During the dark period the plant doesn't absorb any CO2.