I was just surfing the Internet and I came across a page that was called "good news for pets."it was saying how goldfish don't like living in bowls. I was like ok.....then I read the last paragraph......
"bettas are hardier than goldfish,And bowls are way more suitable for a life in a bowl.When the water begins to get foul and oxygen deficient , that's about the time a goldfish begins to fail,And eventually goes belly up. A betta doesn't need much care; it just reaches above the surface and takes in a breath of fresh air. Bettas have a Lung like organ called a labyrinth. That is exactly like its worded (ok almost) this makes me mad!