You're welcome!
And remember, dwarf puffers are freshwater fish that do NOT require aquarium salt in their water (the LFS people may say otherwise, but they are mistaken).
Make sure you get some frozen bloodworms to feed them. They may be finicky and refuse to eat at first (a few days without eating is fine, so don't panic if they do this).
Also, you'll probably find it best to 'target-feed' them using an eye-dropper to dispense the bloodworms into the tank. Just dangle the dropper just below the surface of the water with a worm sticking out of it, and the puffers will come up and grab them. (or, if they don't grab them, just let a few drop down into the water while the puffers are looking at the eye-dropper so that they locate them as they sink)
Don't worry, feeding won't always be so complex...just at first, mainly.
Big Vine