I love and hate betta shopping at the sametime. I love going out and finding that one special betta that just speaks to you but seeing so many in those tiny dirty cups makes me so sad. I stopped at a local pet shop that I haven't been to in years the other day. They have really gone down hill. They had 4 bettas, in clear dixie cups. They couldn't have had more than a cup of water each, if that, and the water they did have was really dirty and cloudy.
I've seen some sit on the shelves so long that most of the water as evaporated and you know they are not being feed. :(