tropical fish is normally kept in houses by people in aquariums because of their bright colors. These possess very attractive colors and look very beautiful. These can, some time, perform recreational movements which are liked by all. There are three very common types which are generally kept in homes in aquariums. Firstly, it includes specimens which are wild-caught. Secondly, those single species which are born in captivity. It includes selectively bred lines for some specific physical features like long fins or some specific color. Thirdly, there are hybrid ones also which are combination of many species. These are some times considered very instrumental in recreational activities and many recreational lovers are also very found of tropical fish.