Hey Farmer! Yes, liking the training on the NL! I'm not saying that one isn't a sativa but I usually think sativa when I see skinny long leaves, those look more indica to me but I ain't no expert!
They're really looking good! That one with the rust spots, is that the only one? I suspect it's either got a substandard root structure to support the plant or its root bound..?
@DopyLemontree what do you think? id suggest waiting a day or two and checking the roots, squeeze all around the pot to loosen it up and the plant should slide right out, get us a pic if you do that. Possible fixes include trimming off a bunch of leaves, a nice heavy transplant or up pot. Could also,be Brix was too strong or too much. Let's see what Dopy and others suggest. They're really growing fast!