Sharkdoctor (aka my girlfriend) is in the same situation as you.
Her heart is absolutely in fish. She cries while watching documentaries. She knows everything there is to know about everything aquatic. She breeds fish, propagates coral, makes out with manta rays, etc.
But there isn't a whole heck of alot of money in the fish world.
Unless you land grants working for a college doing research or manage an aquarium, I dont see the fish world being a viable career path.
The shitty reality is that maintaining an aquarium really isn't that hard and there are plenty of kids willing to get paid minimum wage to clean tanks and feed fish. Unless you are a veterinarian or have a degree in marine biology and get a lucky job, fish are better kept a hobby.
That's why she's going to college and working at a grocery store.
To keep up the fish fetish we keep a badass aquarium and frequent aquariums.
We just swam with whale sharks at the georgia aquarium. WIN!
And I like the direction this thread is going. cool people only.