Oh yes! My fist impulse pet store buy was a dwarf hamster kept on pine. I only realized anything was wrong years later when I learned that one year is NOT a reasonable life span. And a year after him, I purchased a very miserble green anole which was wild caught, totally brown (indicated stress), in a highly over-crowded cage in the store, and sold to me with advice of the wrong enclosure size, temperatures to keep, substrate to live on, and generally incorrect information about it's habitat requirements and maintenance. x.x
I have the appointment this evening, and I'll let anyone wondering know how it goes.
If porphyrin can be caused by stress of mites, then I'm almost posstive this is why they have it. I've actually added another hanging hide to the panel of the second level, so now every possible pit is sealed. I have been giving them freshly squeezed fruit and veggie juices mixed with water which they love, as well as plenty fresh food for extra vitamins. Twee once had an over grown tooth issue and wasn't drinking or eating so I check them both regularly for dehydration and weight, and Ferkel seems alright now.