No Bluing

[Samiam]

About a week ago I traded a juvenile ball python for a baby yellow ratsnake. After letting him get acclimated for six days, yesterday I fed him a pinkie which he accepted readily. This morning I looked in his cage and noticed shed skin in many pieces. I've observed him daily since I got him and he never went into blue before the shed, so I didn't get the humidity over 50%.
Is this common? Is not bluing a common thing for young snakes? Is it a sign of ill health? He appears perfectly healthy otherwise, and my temperatures have been optimal. Thanks in advance for any advice.

[LdyPayne]

It is very possible he was blue before you bought him. It can take a week from blue phase to final shed. As young ball pythons shed alot, it would be a good ideal to keep a moist hide or always keep the humidity at 60-70% and increase to around 80% during shed.