hey man u have to wait about a week to see how they get on have you been keeping the lights close to the tops of the plants? well the ph will come down after flushing wait a few days and see what happens but if u ask me they should be fine be patient it is weed and its a hardy plant so dont worry what i do know about LR is that they are very sensitive to nutes and ph changes keep flushing till u get it down to 6.0 6.2 and they will be fine and after that you will start to see new growth, keep ur chin up dude KAT