Instructions
Size does matter, to your fish. Fish tanks generally aren't very expensive, and the size of the tank is the most important factor in picking the right aquarium for your goldfish. Goldfish require more space than other fish, so be sure to provide 10 gallons of water for every goldfish you plan to keep.
Calculate the surface area. Once you have found a tank that provides enough water for each goldfish, you need to figure out the surface area by multiplying the length of the tank by its width. The surface area is important for fulfilling the oxygen needs of your goldfish; the general guidelines are 30 square inches per goldfish.
Provide hiding places. Goldfish are timid and will feel safe if you add decorative elements to your aquarium that will give them a place to rest. Filling half of your aquarium with these pieces will lure your goldfish into open swimming because they will feel much safer.
Choose aquarium decorations for function as well as style. Those treasure chests that open and close look really cool in your tank but may be a hazard to your goldfish. Adornments such as artificial plants, decorative rocks or other objects with smooth edges will serve to not only brighten your aquarium but keep your goldfish safe as well.
Purchase a stand that can carry the load. Your local pet store carries stands that are made specifically for aquariums. Choose one sturdy enough to hold your tank, keeping in mind that one gallon of water weighs about eight pounds.
Go light on the lights. Many aquarium owners love to install covers equipped with lights to bring out the color of their goldfish and to highlight the aesthetics of the tank. Goldfish, however, don't have eyelids and are sensitive to light. While you may like the look of a lighted aquarium, your goldfish can become stressed if you leave lights on.
How to Pick a Goldfish Aquarium
One of the first pets for which children take responsibility is the goldfish, whether won at the county fair or bought from the local pet store. This is usually because parents figure that care is easy, especially if it's kept in a bowl. What people don't realize is that goldfish should never be housed in a bowl, and that picking a suitable aquarium is key to proper goldfish care.