Goldfish - 25 cents each 5 gallon habitat with self-cleaning filter - $40.00 Changable backdrop for back of habitat to weird fish out - Pastels or colored pencils, glue, paper scraps and macaroni - $2.00 Ability to replace fish - priceless
No toilet training, keep near a warm vent, minimal smell, can live for weeks on one of those disolvable shells, and if you spent a lot of time with it, it will learn to do things like spit gravel at the glass.
Fish
5 gallon habitat with self-cleaning filter - $40.00
Changable backdrop for back of habitat to weird fish out - Pastels or colored pencils, glue, paper scraps and macaroni - $2.00
Ability to replace fish - priceless
No toilet training, keep near a warm vent, minimal smell, can live for weeks on one of those disolvable shells, and if you spent a lot of time with it, it will learn to do things like spit gravel at the glass.