Im week 7 flowering under 400 w hps my.leaves seem to be.very brittle and alot.of.yellowing is this.normal.using botonicare i stopped.kool bloom this week (liquid) im going to feed 1.more.week then start to flush but they dont seem quite.ready and the.trichs are.not.amber.yet checc.my.pics.out.and.plz.all advice.is.helpful