We have seen this story in National Geographic about betta fish and a PETA campaign against US pet superstores that sell these fish. Despite what the story says we were not asked for a comment.
Our advice to our members is always to follow the Primary Authority advice we asked the City of London Corporation to provide a few years ago about this very issue.
Our view is that any pet shop should provide good accommodation that does not compromise the fish’s welfare. As the advice says: “a reputable retailer should endeavour to keep their stock in the best conditions possible, despite any tolerance of a species to poorer conditions.”
Good water quality is always key although the advice also outlines the minimum sizes of display tanks. It also makes clear male betta should not be able to see each other.
Through the pet shop/animal activities licensing regimes within the UK all shops selling animals are expected to be knowledgeable about the species they sell and give customer information.