Thank you for your input and everyone else's. I new posting in this forum would be a good idea because people at pet stores have no idea what they are talking about!!

Yes he adjusted quite well. He definitely is quite "squirrelish" as some other people have said because he was afraid of a worm when I put it in the tank! He's been eating the guppies and he just started eating the turlte pellets. It was very exciting.

He seems to be doing much better now that his environment is warmer. I also noticed he is peeling or shedding. Is that because he is growing and the skin is stretching?

I named him after Squirt in Finding Nemo because I fell in love with those turtles as soon as I saw the movie!!

You are definitely correct, he has a ton of personality! He's very entertaining!