Please help guys pics attached problem with a couple of plants!!!

[Waira]

... Superthrive has lots of stuff in it, including B-vit's and rooting hormones,.. meantime, try to keep the soil at an even steady moisture, minimal wet-to-dry, for now,... a foliar spray, out of the direct lights, will help speed things in there,... do you have a wetting agent/water spreader? this will help the solution coat and stick more evenly,... spray bottoms of leaves as well,.... let them dry before going back under the lights too,...

 

[namvet25]

If you don't have any root insects I believe your soil is at fault and the roots are starving for oxygen.You should no if it's to wet or to dry by the weight of the pot.I would suggest using a lighter soil mix for your next grow with about 30 % perlite added and this will help it drain better and give the roots more oxygen.Check our soil and fert thread for recommended soil mixes like promix,sunshine,roots organic,etc.