What are these stains and decolorations about?

Chili420

Member
I recently had a plant with clear signs of magnesium deficiency (yellow between the leaf veins (lower leafs) and almost purple stems).

So I fed the plants with epson salts. I did it with all of them as a preemtive method.


Now this plant (started flowering not long ago) show some signs of problems in his lower leafs. Some even died and fell.

Maybe the epson salts thing is just a coincidence. I did the feeding 3 days ago and the images are from today. It seems too early for the epson salts to do all these problems.

What do you think it is?

IMG_20210331_125952753.jpgIMG_20210331_130014881.jpgIMG_20210331_130030006.jpgIMG_20210331_130040836.jpgIMG_20210331_130136477.jpg
 

Chili420

Member
Peat moss based soil (klasmann ts3).

It's the only plant with these symptoms from a total of 4.

Should I give them something extra? More of my basic nutes?
 
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