last 2 photos 4&5 show a magnesium def. light green and darker @ the viens
photo 5 shows the leaf margins curled upwards........ classic Mag def. signs

the curling downwards maybe from all the watering? fix the Mg first and we shall see

1 tabelspoon epsom salts to a gal of water, however they have had quite a bit of water lately so foliar spray the mixture on both top and bottom sides of leaves, if you see any difference within 48 go ahead and give them a drink with the remainder of the mix
Ganja Guerrilla Reviewed by Ganja Guerrilla on . Nute burn or MG deficiency? First I would like to thank all the members who do so much work for these boards. I have spent the last month just browsing through journals and FAQs and I have learned a lot. However, there are some problems with these plants that I am not sure how to diagnose. I think they have nute burn or a mg deficiency or something. The plants are wilting, have leaves curling downward, rust colored spots along the leaves, and generally look sickly. There are 3 plants in rock wool burried in potting Rating: 5