First pop

Horrible week lol seen a lot of damage to the leafs couldn't pin point issue so I ran a flush through as plants seemed to stop taking nutes up altogether. Showing deficiency signs do I flushed them through overrun tested at 2.0 ec opposed to 0.2 going in but I could see something tiny skipping on the water so I took soil in to my work to look at..... Huge thrip larvae infestation and I think fungus gnats as neem wasn't here yet I had to flush with hydrogen peroxide and kill my beneficials as well. Damage to the roots was horrendous won't let upload pics possibly too big. (Not the larvae took ages to find them they're shy, they jump and they suck) lots of damaged leafs removed. Ready to throw in the towel as it started to look unrecoverable.