One of the simplest of aquariums is a fish bowl. A fish bowl can even be part of a table arrangement. When one chooses a fish bowl it should be a big one. At least a gallon. You'll also need a small net and two 1 gallon bottles of drinking water that is not distilled or de-ionized, as tap water isn't safe for your fish. Even if water is treated with water conditioners it still wouldn't be safe. You will also need some floating fish food. You will need to fill your fish bowl 2' form the top of the bowl. Then you will need to cover your bowl with a clean plastic cover. Sometimes a clean lid from a coffee can will do. You don't want your fish to jump out or another pet jumping in! You will need to replace about 20% of the water twice weekly and you can make your own bottled water by using the following method. Fill a bottle with tap water and leave about 2" of empty space at the top of the bottle. Add about five drops of water conditioner and then replace the cap tightly. You will need to let the bottle of water sit for at least three days before you use it for your fish.

There are also cool water aquariums. These aquariums sit at room temperature and do not require a heater. You need an aquarium and a cover. You should get an aquarium stand as well. You will need a five inch fish net, water conditioner and some food to feed your fish. . Make sure you read all the instructions from your aquarium and water conditioner. Make sure your aquarium is running for at least three days before you add any fish. Only add one fish at a time and wait for at least three weeks between fish. There is a maximum of one 1 foot fish per gallon. Don't overcrowd your fish.

A Warm Water Aquarium will require more skill to maintain than a cool water aquarium. You'll need an aquarium, an aquarium cover, an stand and a power filter with a BIO-Wheel. You'll also need a 5-inch fish net and a bottle of water conditioner as well as fish food, such as floating flake food and freeze dried blood worms.

One other type of aquarium is the betta fish vase. This has become increasingly popular. Often times buyers of a Betta Fish Vase have been told that the Betta can live by eating the lily roots, this is a mistake. The Betta will eat the roots, but only out of desperation and it will not be a healthy fish.

The Betta should be fed floating food that is labeled for Betta Fish and freeze dried blood worms, which are actually mosquito larvae. Betta Fish usually do much better in a large fish bowl than in a vase. So if you happen to receive one, your fish may be better off if moved to a bowl. Please think twice before offering one as a gift.