Feel so bad for Fighting Fish - terrarium? Hanging fish tank - could easily be made with a banana hanger and a ceiling light set from a home improvement store; would be fun as a snow globe or terrarium, too.
Self Cleaning Betta Aquarium - Simply pour fresh water in, and dirty water is expelled through a tube and out of the tank while your fish swims happily within. There are no filters, batteries, or cords. DON'T USE AS A BETTA TANK