So 2 nights ago I received 11 clones, transplanted them and put them in my micro box. They had a stressful drive and weren't packaged correctly but seem to be ok and are still showing new growth. They were showing signs of nutrient burn so i flushed them the next day. Today the leaf tips seem to look better but the stems are turning purple. Not stripes, but the hole stem is turning purple mostly on the top of the plants. I didn't lime my soil but the ph seems to be fine along with the ph of the water I'm using. Should I fertilize with the soil still wet right after flushing? The temp got down to 69 for 2 hours or so could that have done it?