Axolotls require a large, fully aquatic aquarium. Have a lifespan up to 15 years and require proper care. Are carnivorous, needing live or frozen prey. Water conditions must be monitored and within specific pH and temperature range. Can regenerate lost limbs, popular in research. Uncommon pets, finding a knowledgeable vet may be difficult. Grow up to 1 foot and have messy eating habits, need a large tank. Nocturnal, require special lighting. Shy, sensitive, need a peaceful environment.