Air pumps are cheap. (7.00)A filter is optional. even an ornament would supply enough air in a small tank. You can always go with goldfish or other fish that can get all their air from the water. Keep in mind aerated water prevents algae.
There are various places that specialize in fish tanks and aquatic maintenance. Services such as Marine Depot and Acrylic Aquariums are reliable websites to order aquarium tanks. There are other more general stores such as Walmart and Petco that allow aquarium tanks to be bought both online and in-store.
an aquarium or habitat
They are relatively small tanks.
Goldfish may be kept in an uheated fresh-water aquarium. They are considered ill-suited to live in a heated tropical fish tank, as they are used to the greater amount of oxygen in unheated tanks.
Aquarium live rock.
a camera, oxygen tanks, and other various items.
Tanks that are reffered to as "breeder tanks" work very nice as a goldfish aquarium. They are quite wide and noticeably shorter than the average tank which is more of a rectangle and doesn't permit as much gas exchange. An aquarium that is wider has a larger surface area thus allowing more gas exchange resulting in higher dissolved oxygen levels.
Nitrous oxide tanks are BLUE
The Reef Aquarium TV - A Visual Display of Beautiful Reef Tanks - 2011 V is rated/received certificates of: USA:G
fish tanks tend to oxygenate naturally through filtration (depending on the type) and mechanical aeration. The use of marine plants can increase oxygen levels as well to balance an over population of fish.
Supplemental oxygen from portable or stationary tanks
they all have tanks