a lot of misinfo here.
1. nitrogen deficiency does cause yellow leaves.
2. cal mag creates rust spots(looks like nute burn but all over the leaf not just the edges.
3. if you are growing in coco you do need to supplement with some type of cal mag as coco is a calmag hog.
4. do not flush with straight water, make sure to add a weak nute solution. your plant looks worst after the flush because you left it with no nutes.
5. dont worry too much about the lower leaves during flower as those leaves are usually the first to die off as the plant no longer needs them.
just let it grow man, stop fucking with it. its made it this far and your tops look good. good luck with your grow bro, and is not a bad idea to add a little N to the flowering nutes as most are lacking. peace
A lot of misinformation there, them rust spots u say calmag gives your plants, is normally a sign on mag deficiency if from lower to top and calcium from new growth to old...
You don't have or need 2 add calmag if using the right nutes, if using hydro feed for coco, then yes, you need 2 supplement the calmag but coco feed has the right amounts of cal&mag for its purpose.
Also, if the plants get exactly what its after when it needs, the plant doesn't need 2 cannabalize itself, only reason they grow fan leaves is for nute storage in case in the wild u have a dry week, it'll drain the leaf. A proper indoor system doesn't need them if they are grew well enough.
I found just adding Epsom salts done for me when I done the wwxbb, when I didn't add that 2 the first 1, every plant hermied.
When I added it, healthy potent ladies.
So, people could try Epsom instead of calmag, beware, the more mag u add the less cal that gets uptakes and vice versa, so only use a couple of pinches
