Violent smoker: As I see it, you have two options: one, is to get a smaller net pot and raise the nutrient level and the other is to just raise the nutreint level until the roots reach your present level. Capillary action of the aereated nutes will bring the nutes up to the roots and the distance will encourage the roots to grow down to the nutes. But everything else will have to be perfect; pH, temperature, lighting, etc.
A top drip line like Danhoe417 suggested until your roots reach the nutes would probably be the fastest and easiest fix. You can pick up a cheap fountain pump at The Home Depot for about $20 and that should do it for you. You might want to see what you local hydro store has to offer.
You camera moved around a lot, but it looked like the new growth was coming in okay. You may be dealing with nothing more than transplant shock. Try a dose of B-1 while you're at it. HSA