Very easy to grow strain with lots of potential. The dry weight this time was not the usual but in a grow room for one plant I had 2 plants. The lemon was harvested on the 1st of June while the Northern Lights the previous week. The outcome was 200 gs out of 2 plants. I was thinking in my next grow to do an Lsd 25 auto but I think I ll go again with the 60 day Lemon.
You’re overfeeding nutrients, not under feeding. Week one with autos should be like 75ppm, week two 150, slowly working up to about 550ppm. It looks to me like you’re over feeding and likely overwatering. Dropping leaves is typically too much nitrogen or too much water. That’s why I don’t “top feed” from the top, I feed below the RapidRooter.
Also, why are you using 0.5 of everything? You should be using double your A&B compared to everything else. Overall, you need to lower your PPMS. I’d add water to lower the nutrient concentration.
I'm far from being a pro but to me it looks like overfeeding ?
When I grow hydro I am using different nutrients than you but normally what I do is NO nutrients the 1st week (except roots stimulator/enzym) and starting with 1/4 of recommended dose on the second week...
Hope you'll find the solution quickly !
Cheers