Ok here are some initial pics.
Size comparison
As you can see his shell is completely covered in algae and I don't know if you can see from the picks there a couple of areas on his shell where it looks like there are divots almost like his shell is eroding away. I'm kinda concerned about them, and am thinking about a Vet trip to have him looked at. I started scrubbing his back with a tooth brush, I didn't use salt because of how covered his shell is and there was no way I was going to not get the salt solution on his skin. After about 20 mins of scrubbing his shell looked a little better, but I could tell he was getting a little stressed out. So I put him in his new home and as a house warming gift I had picked up some meal worms on my way home. He went right after them!
As soon as he is done with that meal I'm going to try some fruit see if he is up for that.
Can anyone suggest a cleaning solution that won’t irritate hooties skin when I clean his shell, I fear that water and elbow grease just won't get the job done. Also I don't want to but rubbing salt in those divots on his shell if they are going to irritate him.