So before I ask, please those of you in here, dont get mad at me for not posting in marijuana plant problems, as I already did a couple times and the responses were lacking..

Im on about week 4.5 into flower with 9 plants using ebb n flow with hydroton. A good majority of my plants began to get nute burn pretty bad so I began to flush... well im on about day 6 for flushing and they dont seem to be changing much...

what is the longest I should flush for? or that you've heard of anyone flushing for mid flower? i know the direct answer is flush until i need.. but i feel like i could be depriving the plants as well if i flush for too long on the yield and potency.

thanks in advance, i value greatly what i read on this forum.