Question for the DGC. I’m growing in a 4x4x7 with a 8″ fan to move air around. I have 3 plants doing wonderful. I have a 6 inch fan and charcoal filter pushing the air out of the tent. When fully shut I notice my tent is air tight and seems to be sucking in the sides causing a vacuum effect… Could I be pulling to much air out and choking my plants by removing too much oxygen?