One of our goldfish died yesterday. It was 2.5 years old, and part of a small aquarium I bought with my daughter a couple christmasses ago. They had been doing really well and this was a real surprise to find him just resting on the bottom of the tank.
My daughter is 5 and she is not really too concerned about death yet. When our dog died last year, I mustered up all my courage to tell her that our doggie had gone to heaven and she looked up at me and said "Does that mean we can get a kitten?".
Anyway, gotta go to the pet store and buy some fish antibiotics and clean up the fish tank tonight. Might have ben a bacterial or fungal infection.