Hey bailgrow,
This isint your first grow ?
They look amazing , seriously , im not sure that i can recommend anything , the medium looks a little dry , but you must have a good watering schedeule to get to this point.
What strain are they ? Are they feminized seed ? Clones ? (They look like clones)
I would get a loop / magnifier and check around to look for tiny mites , but im sure you dont have them...
Looks like something was eating one of your leaves ?
Get a magnifier glass , jewelers loop, or anything on ebay / amazon to check...
You know look under leaves for black dots....
I use
neem oil when i see a mite problem begining , but if you want to you can give them a preventive spray , do you know how to mix neem ?
1 gal is a little small for your set up , i like your light choices , do you have heat under control, that can be an issue if you dont have enough clearence above...
I would lay off the foliar spray, you have enough going on , you can fall into the" loving your plants syndrome " if not careful,
Just read your plant like your doing
I dont think your leaves got crunchy from light deprivation, i think dry or a bit of nute burn , make sure you stay on top of your watering, they are going to drink a lot and fast in 1 gal pot, give em a break every , maybe 3rd watering and just use plain water , just read them and see if they refresh or like that....
Otherwise looks good so far, do you have adequate air flow ?
Also if it was me, i would trim out a bit of the large lower leaf thats not getting light....
Just a few here and there , dont go nuts.....