I recently received a zygopetalum orchid from orchid.com (maybe not the best idea to order from mail.) but it seems very healthy. The only thing is that the roots look kinda strange. They are kind of a mix of green and areas of white. It doesnt look like a fungus at all, but i'm worried about it. I've been letting it dry out pretty well but not all the way so i dont think its rot. Any suggestions?