I started working at a fish store just over a month ago, and it's awesome. It's a really nice break from the real-world application of my Bachelor's degrees... I just kind of decided that I am done with normal jobs for now. I don't make much money, but I have more job satisfaction than I ever have, and I get a wicked sweet employee discount on whatever I want.
My only caution is that you should watch out if you are as addicted as I am. I have 5 tanks currently, and I am planning another 55 FW
and a 90 SW