Owning a 20 gallon fish tank can be a very relaxing hobby. If you have small children, they will spend many hours mesmerized by brightly colored fish swimming around and frolicking. In fact, aquariums are a great way to bring the family together, especially if you allow each of your children to pick out one special fish (of the breeds you are planning to have in your aquarium) to be his or her very own fish.
Despite the relaxing nature of aquariums, they are not a no-care item. In fact there are many things that must be considered when choosing the proper fish tank for your specific needs. Aquariums today come in many shapes and sizes. It is always a good idea to know what you are going to be using your fish tank for before purchasing and setting it up. You do not want to have to undo all the work that goes into an aquarium because it won’t sustain the fish and plant life you have planned for it. Nor do you want to kill your fish because you have a tank that is improperly set up or proportioned to house them.
Once you’ve decided the basics (saltwater vs. freshwater, reef tank, or live plant tank) then you will want to consider how many fish you want to house in your tank. A good rule of thumb is to plan for one inch of fish per gallon of water in freshwater tanks and one inch of fish (measured from the nose to the base of the tail) per 5 gallons of saltwater. With proper maintenance, however, a 5 gallon fish tank can certainly hold more than one fish. The quality of the fish tank has, as well, a great deal to do with the number of fish it can hold.
Many aquarists (people who keep or maintain an aquarium) prefer the 5 gallon fish tank because they are not limited to freshwater or saltwater; they can have one or more of each. In addition, you can have a fish tank wherever you spend a lot of time — in the kitchen, bathroom, bedroom, den or office.
Having an aquarium can be a great way to relax at the end of a long workday or workweek. These pets do not require daily walking or litter box cleaning, but they are an investment and do require some maintenance. Care properly for the animals in your fish tank, and it should provide you with a wealth of entertainment over the years.