Best for ages As soon as kids can keep their hands to themselves.
Before you commit Tropical varieties are beautiful, but you’ll log more time taking care of them than cold-water dwellers like goldfish. Common goldfish are a great starter pet for city families. They’re hardy enough to survive an occasional lapse in tank cleaning, they don’t take up much space (a couple of small ones will do well in a five-gallon tank, which can fit on top of a bookcase), and they may live as long as 20 years, which helps you avoid those tearful toilet-bowl funerals.
After you commit Place the tank out of reach of your kids, and teach them to keep their hands out of the water, which can harbor salmonella and other bacteria. Handling a fish—a secret kid pastime—can also speedits demise.