An Introduction to Gold Fish Tanks

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     It is a myth that goldfish thrive well in bowls. Goldfish actually need a tank in order to live well and to stay healthy. The bowl as a tank school of thought probably dates back to China. In medieval days, Chinese nobility kept goldfish in ponds, similar to the koi ponds of today. In order that their goldfish could be viewed better, the Chinese nobility began to bring them inside in small, flat-sided bowls. From this arose the practice of keeping the goldfish in bowls. However, to maintain a healthy balance within the water, it is best if a goldfish tank is used.

While goldfish in bowls are pretty to look upon, the round sides allow for very little room for an exchange of oxygen. In addition, they do not allow for growth of the fish and can be difficult to clean. Goldfish who are properly housed in a goldfish tank can live for up to twenty years or more. Goldfish will also grow larger, provided they are given space to live and grow.

The size of the tank should be the first consideration. A commonly held opinion is that it is best to allow a 20 gallon tank for one goldfish. For additional fish, an extra 10 gallons per fish should be added. While having a 30 gallon tank for two goldfish may seem excessive in the beginning, it must be remembered that given the space, these fish may grow quite large.

Filtration should be the next step. Goldfish produce a large amount of waste and because of this need a good filtration system. Because goldfish eat such large quantities and because they like to play around in their gravel, a filtration system is a must. A full-sized filter is preferred, but the type that clips on the tank can be used. It is important to note that these filters must be cleaned regularly for proper care of your fish.

A screen or lid for the aquarium is also a must. Goldfish are known for jumping, so there must be a screen in place to ensure that the goldfish remains in the tank. Other additions to the tank should include pea-sized gravel that is purchased from a store and is designed for aquariums, live plants, and a heater. Never gather rock or gravel from the outdoors. These contain pollutants and bacteria that can kill the goldfish. Live plants work better than the plastic plants in a goldfish tank. Live plants help give off oxygen, while the plastic type generally mold and mildew. Although goldfish are not as sensitive to cooler waters as tropical fish, heaters are a must for anyone who lives in a cold climate. Keeping the goldfish tank water at an even temperature prevents the fish from going into shock. The tank should be kept level and should be in an easily accessible area.

By purchasing goldfish from a reputable dealer and providing the fish with a large tank which allows for room to grow along with plenty of surface area for oxygen, a goldfish can be a show-off fish that can live a long and healthy life.