One should consider other people's situations and not just their own before hinting at or making suggestions. For one obvious example...we don't know yours or his water qualities. You telling him that you don't pH your foliar feeding bottles, how does help him? I'm not trying to be disrespectful or having a go at you cuz I'm sure you're trying to help....are you guys starting with the exact same water?
PROVIDE SOME DETAILS so the novice grower isn't lead to believe "oh, well mongo doesn't pH his foliar feeding bottles, so that means I don't have to"...because that isn't necessarily true and statements like such are unhelpful....but damn I love boxers.