Sealed, coco, purple lemonade auto

On day 29 I switched to preflower nutrions but runoff is still coming very light around 1 ec eventhoug solution going in is 2.4 ec but the plant looks happy so im not worried too much. I did some pretty heavy defoliation on day 32. I took all the lower leaves, small branches and bottom fanleaves out and was a bit worried about the amount of stress but on the next day, as you can see, the plant looked like i did nothing to it. Day 34 i just tucked the biggest fanleaves from blocking all the light. I also noticed some roots bottom of the pot so they must finally been spread troughtout the whole pot Day 39 Had to bend the two tallest stems down order to get the future canopy more even.