O.K. your into flowering 4 weeks (Jungle Juice is basically the same as General Hydroponics which their bloom says the last 2-3 wks,stop using right before flushing begins). Think you used the Bloom a tad early. Could be the light when you took your pictures but it appears the leaves are very light but that could be because you changed lamps. Have you had any setbacks? If so add a week on the flower time, trichs will dictate when their ready. Only 4 weeks in, the flowers will start stacking. I had a set back and pulled them at 10.5 weeks (this cut was 70/30 Sativa dominant 9-11 week flower time). In my opinion anytime the ladies look like they are going south I immediately flush twice, fill, mix the nuits with cal mag first, nuits, bloom then PH. Is your water cured? Make sure the chloride is dissipated 3-4 days. My rule of thumb is if they are flowering your almost home free. Don't stress, its fun Looks like when you changed your lights it looks like the lumen output was much higher. Is your PH stable/up-down? I don't get into the growing section much, more in how to make the concentrate and the med forums. Stop in, some good peeps hanging out. Hope your Holidays was good Brother!
Flower: I hit the switch (12/12) on 11/21/14
I was using some Jungle Juice Bloom early on ; moreover , My plants had a slight negative reaction. ( I may use it again idk ). ATM: I've been using Age Old Growth Fish Fertilizer 5-10-10