Thanks, Jeff! We only had the yellowdotty back and stars and stripes puffer until recently because our protein skimmer was on the fritz. I'm very happy with our new additions and am looking forward to adding more fish soon. :-)
njudson, the fish in the first pic is a "Princess Parrot Fish" according to my LFS. She's a nice looking fish and she'll supposedly get more colorful as she matures. I saw fish while snorkeling once that looked like her but larger and much more colorful, so I'm hoping it was the same species.
We love our puffer, too! He is more interactive than I ever expected a fish to be. He watches us intently as we move around and sometimes throws "feed me" fits where he writhes back and forth while staring at us, seemingly to get our attention. I'll try to capture it on video to share it soon.
You'd think the puffer would be the issue when adding new fish to the aquarium, but it's actually the yellow dottyback in a big way. There's typically a week's worth of relentless hazing before the dottyback finally allows new occupants to live in peace. Once it does, though, there's rarely a skirmish.