[jmystro]

If this damage was just on the lower leaves I’d say pull them and don’t worry if the new growth looked healthy. I’m seeing random damage all over the plant on the tips of the leaves leading me to believe you’ve got a bit too much available nutrition. I’d back off the Fox Farm Trio nutrients. Deficiencies can easily be corrected in soil over a week or so but damaged roots from over-feeding can take weeks to recover if ever.