You'll have to keep in mind that if you go the goldfish route, you cannot mix in tropicals and vice versus. Gold fish excrete something from their bodies that is poisionous to tropical fish and will kill them within hours.
A dog wags his tail with his heart
Dogs have Masters--Cats have Staff
Rest in Peace Bailey: 12/10/95-1/9/09 (Golden Retriever)
Rest in Peace Kitty: 7/1/2000 - 10/7/2013
Gryphon (sounds like Griffin): 10-14-2004 (English Springer Spaniel)
Mollie: 6-2-2009 (English Setter)
Bella: LHD Cat adopted by/from Child