Is there any indication on the leaves if your feeding too much Co2?
spacecpl Reviewed by spacecpl on . Exhale C02 into your grow box/room?!!!!!!!!!! Since we intake 02, and breathe out C02 (what plants feed off of) would hooking a hose up to your small grow box and whenever you exhale you breathe into the hose be a sufficient idea? Anyone, please? Rating: 5