I hawk my PH it stays between 5.7-6.0. This clone was put into the 18gl DWC system with no hydroton on the bottom of the cup. Maybe the PH is high in the Rockwool? I just gave it a good flush with water Ph'd at 5.5.
Give it 5.8 as a known constant and from the size i'll bet she will start coming around in a day or so.....I'll bet she's fine now..just a litte transplant shock