Hi guys I've run into some problems and really need some help please. I'm currently at the end of week 4 flower and noticed some deficiencys on the leaves towards the top of the plant. I'm hand watering once a day at the moment I know it should really maybe be more but I have a very busy life.. I use 0 ec Ro water make it up to 0.4 ec with calmag then add my bloom nutes to 1.4..