InHouse Genetics Dirty Banana

This grow has kind of become a "What not to do". I snapped one of the mains on my attempted mainline, which is clear from last week's photo and its starting to look like more of a bonsai. I told myself I'd never use Roots Organics again but figured I'd give it another shot and the tent has been full of fungus gnats and foliage is dark green and looks like N toxicity. I've had this problem every time with it. I've used other soils in the past and have never had this issue, I will use only coco from now on. I hung some yellow sticky traps and drenched the soil with Azamax. Hopefully I can salvage something out of it. Worst case scenario I'll just take some cuts.