Northern Lights Auto - Royal Queen Seeds

Early in the day, set up the scrog net and LST their way the best you can, it will improve your yields doing it right. Avoid stressing them.

I have settled into a routine with all my autos (and they're all I grow) of starting their nutes off about week 2 or 3 with 1/4 strength grow AND bloom nutes... and increase the doses to 1/2 the next week if they're tolerating them... and so on. With MY nute line, I never get to full strength grow nutes as I find it too strong for my plants... but the bloom nutes are well tolerated and I think it's a good idea to "tell" the plant I'm here to help it... So MY routine is not when to ADD bloom nutes but when to STOP grow nutes - and that occurs about week 4-5. Autos don't like a whole lot of nitrogen in flowering stage and too much nitrogen can lockout calcium which is critical to the flowers... so, since they're already in flower, I would recommend dropping your FloraGro back by half at least and doubling your FloraBloom... Generally, if you're not as weird as I guess I am about things, you should start introducing bloom nutes when the plants go into pre-flower... it just encourages the formation of the buds and gives the plant the calcium and phosphorus needed - and only use calmag IF the plant asks for it (shows either calcium or magnesium deficiency) and then only once a week. Good luck with your grow - it looks really, really good!

Looks to me like the start of a potassium deficiency. If it started on the lower canopy then calcium( which your not adding any cal-mag. Usually required unless you have really hard tap water. ) I rant into the same with my first grow doing a 1 grow :2 micro :3 bloom ratio for flower with general hydroponics. when it should be more like a 2:2:3(grow,micro,bloom) the Gro has a lot of potassium in it and most nitrogen comes from the micro. Stick with the feed chart for your ratio https://generalhydroponics.com/resources/flora-series-feedcharts/