Can too much CO2 be bad for the plants?

[ilovekasey17]

Thinking of pumping CO2 into the grow box. Wanted to know if too much CO2 could be bad... Or good even? Let me know your point of view.

 

[9inch bigbud]

Thinking of pumping CO2 into the grow box. Wanted to know if too much CO2 could be bad... Or good even? Let me know your point of view.

to much will kill them and you