With the right care, they can live between 25 and 40 years under optimal conditions in domestic ponds and environments. This lifespan surpasses that of the goldfish, a fish that isn't as easy for ...

But chances are your goldfish didn't even live a quarter that long ... where a lot of goldfish owners slip up because you can't just buy a fish the same day you get your tank.

Here are our favorite types of freshwater fish you can keep as a pet. If you're in the throes of setting up a home aquarium, ...