any help with my plants

luvvin growin said:

fresh air is crucial in photosynthesis.the plant cant grow or produce oxygen without it.It just uses up all of the co2 in the air,then stops metabolising because theres no oxygen left to assimilate

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ok cool i think that might be it i will hook up a larger intake fan and pump in air from outside . do you think i should leave the intake fan on 24/7 even when lights off . i am running the light 18/6 so for the 6 its off you think i should leave fan on . i am think yes