Axolotls are large salamanders that come from the remnants of lakes Xochimilco and Chalco in Mexico City, Mexico. Axolotls live their entire lives in water, never emerging onto land. Axolotl care requirements are minimal, and provided temperature and water flow are well controlled, they are hardy, easy-to-care-for captives that breed readily in captivity. It is difficult to think of a more unusual display animal than the axolotl, and its bold and tame nature makes it an interactive pet.
Most axolotls reach about 10 inches total length (from the tip of the nose to the end of the tail). A few will pass 12 inches, but this is rare. I have personally seen and photographed a 17-inch axolotl that had to be seen to be believed, but such monsters are highly unusual. Axolotls reach sexual maturity when they reach about 8 inches. This can be in as few as six months, but generally it takes about a year of good care to reach this size.