While trying to discover what this fish was, I came across a great blog hosted by The Brine Queen, a marine biology student. It has all things to do with the sea and if you're interested in that kind of thing, I'm sure you would find the visit very interesting. You can find her blog if you click here.
I think he is some kind of puffer fish and I found him at the Seattle Aquarium a few weeks ago.
Thank you 2sweetnsaxy for hosting this great meme.