Pre flower

I was just wondering if my plants look okay when transitioning into preflower I’ve gone down from 18/6 to 12/12 every 30min til I hit 12/12 I’ve started adding my tiger bloom into feeding using Foxfarms dirty dozen in 5gallon pot using FFOF soil ph6.5 every time so just curious to if k have issues or they look to be normal and if the light green is from str and new growth thank you