its not a fuk lol, 7ml per litre is probably what the 'normal' dosage is so you only add half strength for the first 2 weeks of flowering so 3.5ml per litre and then you start adding full strength so 7ml per litre till you flush ( 1 week to 2 weeks before buds are ready to be harvested )


Hope this help!


Good Luck & Happy Growing! :thumbsup: