Opie1
Master Grower
Really appreciate it brother, I’ll see what happens. Also, where’d you source the kelp?Salute @Opie1 , @Greenthumbskunk just posted a really good video on Jack's 321
https://www.youtube.com/live/6rfHEUwhXsM?feature=share and at around 14:25 GG talks about rust spots showing up on the edges of leaves as Calcium deficiency. I would maybe try just adjusting the ratio you mix your Cal from 2 to say 2.2(small bump) might help keep them green. Also I personally found while I was running Jack's that a small addition (1 shot glass/5 gal) of clean kelp really helped to keep my plants leaves more green than with out using it.
Hope that helps
Did you find something that you like better than Jack’s?