He DIDN'T say you do it to "help ventilation", he noted that there is decent enough ventilation outdoors (so you don't get bud rot), read what you're replying to. And there's no need for an attitude. Now that that's said, use light doses of fertilizer when foliar feeding and if you choose to do it during flowering do it in the morning and shake the excess off so the buds have a chance to dry :thumbsup: