The growth rate of Brazilian tortoise is closely related to its living environment and feeding conditions. Under the suitable water temperature (generally 22~28℃), the Brazilian tortoise grows fastest, and the young tortoise can grow about 2~8cm a year, and the longest can reach 30cm. Brazilian turtle, also known as red-eared turtle, Brazilian colored turtle, beauty turtle and so on. Originated in the central United States and northern Mexico, it belongs to the genus Leptospira and is an aquatic turtle. It has two thick red stripes on both sides of the back of the head, hence the name "red-eared turtle". The tortoise's carapace is flat, each shield has a round green pattern, and the rear edge has serrations, while the carapace of the abdomen is light yellow with a black round pattern, like copper coins, and the pattern of each tortoise is different.