Wedding Cake, first indoor grow

This week was really about waiting to see how the plants would react to the sudden change and very low amount of Nitrogen in the nutrient mix. But really, nothing seemed to change. By the end of the week, yesterday and today, I had to do something. So Sunday and Monday nothing really happened. I just checked on them to see how they were doing. On Tuesday I gave them 1 gallon per with the week 9 nutrient mix, minus the Grow Big and no Cha Ching (has high nitrogen in it). I still had more and more leaves turning yellow/brown, showing the signs of the Nitrogen Tox. Wednesday and Thursday I just left them alone for the most part. On Friday I had finally had enough with the random dead leaves and decided to just flush them out completely. This was a major pain in the ass!!! I split it up and did four plants on Friday and the other four on Saturday. It took about 2hrs to flush 4 plants this way. What I did was I mixed up 1 gallon of water with Sledgehammer in it and put that into each plant, to begin with. Then after about 30mins I went back and flushed each plant with 12 gallons of pH water. I used a shop vac to suck up all the water as I flushed each plant. Before the flush, my ppm was about 2,100 in the run-off. After 12 gallons I was between 350-400 in the run-off. That was good for me. The water out of my tap reads about 125ppm, so down below 400 and I was happy. After flushing the plants I mixed up 1 gallon per plant of nutrients and added it to the soil. I let the run-off sit in the saucers for about 20mins and then sucked out the excess with the shop vac. I marked "Defoliation" for this week since I pruned so many leaves back, but really I just got rid of the dead and discolored stuff. At least another 3 weeks to go, so I'm hoping the buds will thicken up a lot more now. Only time will tell.