why is there such a variation in your ingoing pH? i would quit with the epsom salt...and everything else for that matter. that's way too much crossbranding crap. just feed with your baseline nutes. when you are trying to fix a problem you need to eliminate ALL of the variables that you can.

what size pots are they in?

your temps are a bit high too. high temps can cause leaf edges to curl up as they are working their hardest to dissepate heat.


-shake