Other breed-able mobs, if any, can be bred, but are ignored for this advancement.
They can be acquired by using a Spawn Egg or an Axolotl Bucket while in Creative mode, and they might also be caught with a bucket.
Axolotls can also be killed when they're out of water and passengers in a boat.
Other breed-able mobs, if any, can be bred, but are ignored for this advancement.
If you hold a bucket of tropical fish in your hand while hunting, an axolotl that you didn't see may start following you.
Axolotls more frequently spawn in lush caves.