With their long, delicate fins, betta fish need a tank with low water flow and lots of places to hang out and nap. A 5-gallon tank is ideal for most betta fish, and they should never share their tank ...

Betta fish, or Siamese fighting fish, are an easy pet compared to many others. They don’t require a large tank. Additionally, you don’t need to aerate their tank because they breathe by taking gulps ...