Hi I have a grow log going on but needed to post this here for some advice. My plant is currently in preflower with many bud sites now showing up and is around 30 days old or so. I have noticed the lower fan leafs started turning blotchy in colour to a very light green blotchy cameo sort of look and then to yellow with the outer edges now browning and dying off. The plant hadn't had any nutrients for the last 3 waters as the last nutrients at 250ml per litre (organic canna vega) gave some light nute burns to the newer leafs. I have since, after discovering this issue, fed the plant 250ml veg and 250ml floral nutrients and then 1ml per litre of cal/mag to see if this was the issue. The leafs affected seem to still be turning brown slowly though it only seems to be affecting the bottom nodes or near enough. Hope you can help.