do neon tetras fightsplendens were shown to be considerably more competitive than wild bettas, and also show differential responses in cortisol production in new environments. Siamese fighting fish are endemic to the central plain of Thailand and have been domesticated for a minimum of 1,000 years, among the longest of any fish. They were at the start bred for aggression and area to gambling fits similar to cockfighting. Bettas became known outside Thailand through King Rama III 1788 1851, who is declared to have given some to Theodore Cantor, a Danish physician, zoologist, and botanist. They first gave the impression in the West in the late 19th century, and within decades became accepted as decorative fish. Their long historical past of selective breeding has produced a good selection of shade and finnage, earning them the moniker, “clothier fish of the aquatic world”.