Back in tha game

Ok so this week they are doing well with plenty of new growth, a little bit of nute burn on some of em, could the all mix be abit strong for them? Or maybe the fertiliser they put in it isn't mixed well idk, no Biggie anyway. Gave all of them a little defoliation of some lower leaves. The 5th plant that was going to a mates is now staying with me and my plan is to put 4 into flower at the end of this week and the 5th (biggest) will veg for a few more weeks to fill another 1m2 tent I got, rather than wait for clones. End of week have started lst on, pushing main branches out and opening them up a bit, some light defoliation also, Watered them all thoroughly with rhizontonic & calmag with a ppm of 250 , runoff coming in around 1200 , so think the allmix has quite a heavy dose of nutes for the next couple weeks. Will Flip the lights tomorrow on the 4 together and keep vegging the biggest 5th plant on its own in the 2nd tent for another few weeks.