No more Grow Big! you don't need it this late in flower. I would still give em a quarter cup of Big Bloom every other watering. Now I know that sounds like a lot, but it's not. If you look at the NPK numbers, they're not even whole numbers. Big Bloom is like a mild tea, it won't burn em. The bacteria will help recondition yer soil and baby the plants into feeding. Right now, it's the only hope you have, imo...... I've used as much as 2 cups per gallon every other water many, many times before, they love it! So don't be afraid of big bloom........... I bet if you would have used bigger pots and jus stuck with TB and BB you wouldn't have had any problems at all. I've started a lot of local folks out with it and they have all done well....... Now if they will jus listen when it comes ta no light leaks, not too hot or cold, you can't put that 1000 watt light 2 inches from the plants, they need air, no, a black light won't work! ahh well, whadda ya gonna do........ Anyhoo, I sure hate ta see a fellow grower have problems, I wish ya luck finishin em. Take care... BC