Fish Deaths

So apparently my fish got really sick. Within the past two days all 3 of my Tropical Fish have died. Peace to Whopper Jr., Jackson, and Big Mac. You will always be remembered! Because of this terrible tragedy, we have decided to thoroughly clean that 55 gal aquarium and move the 4 goldfish into that (and see if they will get any bigger than what they are) (they grow to their max depending on their aquarium size) and we will be selling all of our other fish aquariums and stand and food that they did not eat. If you are interested, keep in eye out on Craig's List.com. We also got a Betta fish last Sunday and she is alone in her fish bowl. She is very tiny and her name is Bella. She is a Female Crown tail Betta (whatever that means). Thanks for your support!