Your tank develops a natural balance that supports your pet fish. To avoid changing the water completely, you can do it 10%-15% at a time to allow for the introduction of new water over time.

Things to Think About. The size. Think about where you’ll place your fish tank and how many fish it will hold. Some tanks are as small as one gallon, while others can contain up to 200 gallons.

Kimalu (KEE-ma-loo), a 12-year-old female beluga whale, is resting comfortably following a historic procedure at Chicago's ...

What to look for in a quality 10-gallon aquarium LED lights. Most aquariums of this size will come with LED lights built into the hood of the tank.