Red/Purple stems, droopy leaves, nice root growth?

Got clones a couple days ago and put them in my hydro set up

I had to leave town for a couple days >.<

But before I left I made sure the ph was at 5.4

upon returning I noticed that the stems were turning purple/burgundy and the leaves were droopy and lacking a nice healthy green color although they were still green.....

The pH was also up to 7.1
I quickly lowered back down to 5.4

I will have pics in about 45, just waiting for the camera battery to charge.... but hoping I might be able to get some help before I post pics....
 
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