My new pufferfish

Here is the newest addition to my aquarium. It's a puffer! I didn't realize there were freshwater species but they do exist. The pictures don't do justice to how cute he really is. He's about 1 1/2 inches and floats around the tank like a bumblebee. The other two fish sharing the aquarium are some African cichlids. I adopted all three from my ichthyology lab after they were used for a behavioral study.