Many people are attracted by the quiet and gentle fish as a room mate and companion. Fish make great pets. Watching the fish in an aquarium bring relaxation and are enjoyable for persons of every age and interest. It is almost like you go into a trance when you watch them. Statistics show that collecting fish is the second largest hobby in the world. There are over 25,000 species of fish. Fish keeping dates back to Roman times, and first became a popular hobby in Europe in the 1600s. 

Fish are pets that do not require much care, and an aquarium can add to the decor of a room.  The wonderful thing about fish is the large assortment of shapes, sizes and colours. The behavior of fish also varies with different species. The reasons why fish are so popular as pets is that they are relatively inexpensive to keep, inexpensive to feed, as well as they keep the environment clean and need relatively a small space as compared to other pets. They are welcome anywhere you live, be it a rented house, flat or apartment.