Betta fish, also known as Siamese fighting fish, are very common with beginner aquarists. They are small and colorful fish with striking personalities.
They have been cross-bred over years creating the most amazing colorations and tail variations.
They do not require a lot of maintenance and their physiology and behavior is quite captivating and amazing.
This fish can learn to recognize their owners, and they also create bubble nests. Betta fish have an organ known as the labyrinth organ which allows them to breathe air as their gills cannot always get enough oxygen from the surrounding waters.