.... I was wondering could you add liquid co2 to the water in a hydroponic set up. I dont know if anyones tried this before or not. I have a very limited space to ggrow so I am worried about co2 poising Id like to live throughput my grow.
What do you old timers think about adding liquid co2 to you hydro set-up? Just curious.
Thanks.
CO2 only exists as a solid or gas at standard atmospheric pressure. Liquid CO2 is not possible outside of a tank.
Adding gaseous ( or solid - dry ice ) CO2 to your water, either hydro or otherwise will alter the pH of the water drastically, as carbonic acid is formed in the water. Then, as it's released into the air it changes your pH again.
CO2 in the atmosphere will not poison you like CO ( carbon monoxide ) will, but even relatively small concentrations will make it difficult to get oxygen to the brain. But there is no permanent damage or lingering effect. In practical terms, there is little chance of getting this much CO2 in the atmosphere to cause this problem, particularly if you vent on a regular basis, and have a good regulator on your tank. CO2 also is heavier than air and in still air will settle near the floor.
It is unlikely that you will get CO2 concentrations high enough to poison the plant.
This is all from a chemistry/biology point of view, I have no experience using CO2 myself. As was mentioned, It's only practical on larger grows.
