Apart from that the only thing I would suggest is changing to something else :/
I would still try and see what happens when you tweak your lineup to make sure
The different looking plant could be a phenotype :)
I would suggest manually changing your ph for flowering and make sure your environment is relatively good.
I find it really nice to use because it is very soft when damp ( helps the plant grow roots more easily, which let's the plant grow faster ) , it never gets too wet, only really gets damp (around 22% of the coco is oxygen, meaning no root rot and can't overwater) and is 0 ppm allowing for...
UPDATE: Day 12 of stretching (end of stretching phase!)
Over the past 4 days, my landrace has grown very large. There are now definitive top colas and two long white hairs coming from the pistils :).
At this point I am not sure if I should use training methods to spread her out a bit or leave...
Make sure to keep track of the humidity as well. Your environment is almost more important that lighting and nutrient lineup, keep that in mind. I personally would buy a thermo hygrometer to keep tabs on what's going on. (Be sure to put tape over any back-lit or light emitting objects in you...
First of all, 100 gallon pots are HUGE, even to tree growers.
Sounds like a good setup except for the temp, around 70 degrees farenheigt is optimal :)
Ps if you want more interaction with the thread I would post it under the tree farming threads :)