Properly caring for a fish requires more than just finding a fish tank and filling it with tap water. There are many aquarium options available, so you’ll want to take a little extra effort in picking ...

The cardinal tetra is one of the most popular pet fish in the world. They look like little red and blue sequins. You've almost certainly seen them at the pet store or the fish tank at your dentist's ...

A design studio has built an Arduino-powered fish tank on wheels that is steered, albeit unknowingly, by the fish swimming inside. Michelle Starr is CNET's science editor, and she hopes to get you as ...