Fish are members of poichilotermic (cold-blooded) vertebrates that live in water and breathe with gills. Fish are the most diverse group of vertebrates with more than 27,000 species worldwide.
Betta fish are freshwater fish whose home habitats are some countries in Southeast Asia, including Indonesia, Thailand, Malaysia, Brunei Darussalam, Singapore, and Vietnam. This fish has a unique shape and character and tend to be aggressive in defending its territory.