thin leaves

I'm growing GSc and bubblelishis under a 600w hps and a 600 w led in a 2xx5x6 tent. I need to switch to bloom asap due to hight limitations. Itinned and pruned 4 days ago and the have exploded since then. Should I prune andexfoliate and thin. And how long is recover time. Thanks for reading

I'm in my 5th week Of Veg and 4 of my plants are starting to develope very thin new grow and my fan leaves are curling inward...I was using rock rool then transplanted to soil a week a few days ago before this started to happen....This is my first time growing so maybe it's because I have a rock...