Thank you for all your replies. The second owner said to me that his feathers had always been this way when she got him. He never received real sunshine, or imatation in his life until now. As far as diet goes he has three different food bowls to choose from daily. One bowl has today, 1. hard boiled egg, pineapple, dried mango, corriander and fennel sprinkles. 2 bowl has a nutrition blend for Cockatiels. 3rd is millet. He also has toys I make, today is made with apple slices & fresh mango. Currently I am Sprouting, Quinoa/Corriander seeds. He loves to eat, so he always has a variety. Usually, more fresh veg. Now about spikes on the cage bottom, yesterday there was a couple. He prunes a lot and there was a few new ones on him. I've had him almost four months and haven't seen plucking, ect. He doesn't fly, and appears to have been clipped sometime prior back, he tries to fly from his door porch to the carpet. He wasn't handled prior, was kinda wild, but we are making progress.
Yes, he was misted once while avoiding his face, took a couple weeks to build his trust back. He isn't used to baths because he won't use his tub so far.