My friend and I were showing one of the international students from school around Nelson's Natureland Zoo and we came across a morphed axolotl in their aquarium. The sign read axolotl but It had no gills and they had given it land access. It was definitely an axolotl though, I own one myself. All the staff were busy so I was unable to ask if they had done anything to cause it to morph or if it was just by chance. I had always been under the impression it required specific chemicals in the water. Any thoughts?