My little girl has been looking at a clown fish that my breeder has. How hard is it to keep one? Can it go in a 10 gallon tank? Can you use a regluar pump or dose it have to be a special kind? I never even attempted a salt water tank before. I'm not sure if I want to try if it is really hard. I dont want to get her a nemo then kill it. The fish she is looking at is 20 dollars is that a reasonable price?