Can I use FloraKleen or flawless finish?
your plants only grow to their weakest resource. YOu already didnt provide that for them, there is not much you can do
except begin to treat them right, with good resources all the way around. pay attention to your environment, substrate, nutrient choice, and feeding/watering schedules. You can use anything you want, it isnt going to fix this, you have to work through it and learn.
stop pouring product on your plants, they really just want good living soil, they already know how to find everything they need in healthy soil.
In a couple weeks your nutrient directions will advise tapering your feeding, I suggest you follow, taper to water the last ocuple days and harvest. next time....relax, dont push anything. if it worked....we all be doing it.