The typical pet store will have gold fish for sale. Gold fish are the most common fish for aquariums as they are hearty and can live in most environments. As they are easy to keep alive most people begin their fish experience with them. How many gold fish get flushed down the toilet every day? I would have to guess it would be hundreds. How many have you flushed in your life. What does that men about the fish? Are their lives so worthless that we flush them away when they perish? I guess so. http://www.amazon.com/Ken-Fisher/e/B000APA1OK is a look at the wasted lives of the humble gold fish.