Do They Get Lonely? Betta fish are naturally territorial and should not be housed with any other betta fish because they will fight and injure each other, often resulting in death. They are unlikely to get lonely in their tank; however, if they are in a small tank, they may get bored.

Do bettas like to be alone?

Bettas are territorial, aggressive, and solitary, so they don't get lonely the way other community fish might. With the proper care, they're happy to live alone their entire lives, and this is almost always the best option when keeping betta fish.

Can bettas be happy alone?

Betta fish can experience frustration and depression. While most of them can be happy in a tank alone, their environment still needs plenty of enrichment, such as caves, plants, and room to explore. They also experience stress—especially when their fins are picked at by other noncompatible fish placed in the same tank.