So I read the old thread. Saw the pics. Some of the collective knowledge there I can confirm. I'll break it down in point.
1. Needs a bigger pot (re-potting at this stage can be a savior if your having deficiency/toxicity problems in a dirt grow. Up root that thing, brush off the loose dirt. And re-pot in something that will give you about 2" of new dirt all around that root ball. Water till shes soaked and then leave it for a week or so to just adjust and soak up all the fresh organic nutrient. doing this will also help restore a workable PH if you over did it with nutrients)
-my recommendation...ditch the fox farm pre-made soils. Grab yourself a nice BIG long style tote with a lid for mixing your own dirt in. and buy decent generic potting soils, manures and/or composts. Buy one of each if you like and mix em up. have a bag of vermiculite and pearlite on hand as well. All of these can be found at Canadian Tire, Home Depot, Walmart type places. I like to add a few cups of vermiculite and pearlite to anything I mix up. keeps good air in the soil. Makes heavier dirt lighter, and that promotes easy strong roots. This will save you LOADS of money in the long run, and you'll always have your tote stocked for situations like this. Fox farm and all that, is a lot of hype. New growers shouldn't be trying to jack-up their plants anyways. they should simply be aiming to keep a healthy plant start to finish and the results will amaze you.
2. The issue at hand I believe is a minor deficiency warning. Not to be alarmed. but that doesn't mean go nuts with nutrients just yet. Get the re-potting thing done. water real well and sit back. Things will correct themselves. now that doesn't mean the brown or yellow spots repair themselves, it just means that no NEW leaf symptoms shouldn't occur in the new or existing healthy growth. you can expect a delay in growth as it adjusts to the transplant. that is totally normal and is completely fine. The plant will go through a spurt once its roots stretch out a bit into the new soil.
3. Someone mentioned you may be running hot. I'm not sure. it's possible...but I've grown this shit in 90 degree temps with humidity as low as 25% quite successfully. The weed is hearty....so your heat is not likely the case.
4. Don't know how your watering goes, but make sure to let that soil get almost dry every so often. Its really good for the roots. As wet dirt dries, more oxygen is pulled into the soil. oxygen is JUST AS IMPORTANT as water, and if your dirt is always real wet then you minimize the available oxygen and risk root rot, slow growth, stunted growth, improper nutrient uptake, etc.
