Never had this happen on my 4 previous grows. Setup:
Indoor grow in 4x4x6 foot tent
5 gal fabric pots 1/2 topsoil, 1/2 cocoa coir
3500w QBs 20" above tops of plants
Popped on 8/9. All in flower now.
Feed with FF nutes 3x weekly.
Supplement with Cal-Mag and fish emulsion fertilizer 3 times since seeds originally sprouted.
Water is ph'd to 5.9.
I'm growing Girl Scout Cookies, Lemon Haze, Alaskan Purple, and Big Bud x WW. All are autos. All strains are showing the yellowing and dark spots, but not all plants. I think this looks like calcium deficiency but kinda surprised since I supplement with cal-mag. Any opinions or suggestions would be welcome, I'm only 2 weeks away from harvest! Thanks in advance!
Indoor grow in 4x4x6 foot tent
5 gal fabric pots 1/2 topsoil, 1/2 cocoa coir
3500w QBs 20" above tops of plants
Popped on 8/9. All in flower now.
Feed with FF nutes 3x weekly.
Supplement with Cal-Mag and fish emulsion fertilizer 3 times since seeds originally sprouted.
Water is ph'd to 5.9.
I'm growing Girl Scout Cookies, Lemon Haze, Alaskan Purple, and Big Bud x WW. All are autos. All strains are showing the yellowing and dark spots, but not all plants. I think this looks like calcium deficiency but kinda surprised since I supplement with cal-mag. Any opinions or suggestions would be welcome, I'm only 2 weeks away from harvest! Thanks in advance!
