This guide will provide you with 18 things you didn’t know about Axolotls in Minecraft.
When Fighting

Axolotl does something super cute while fighting. Every time they get hit, there is a one in three chance they’ll play dead. They’ll drop to their side in the water and heal two hearts with regeneration, one for 10 seconds.
Amphibious

Mojang has given them ‘amphibious’ qualities like real life.
Damage from Tridents

They take extra damage from the impaling tridents, but they make pufferfish inflate, unlike other aquatic mobs, a perfect mixture of aquatic and land lubbing mobs.
In Cave Pools

Axolotls spawn in underground cave pools or any water below y=63 with blocks above it.
Play in Bubbles

Axolotls love to play in the bubble columns.
Concept Arts
Here’s some concept art for the Axolotls. These are the original sketches, and you can see how they kept their charm.
Hidden Texture

In the snapshots for 1.17, there was a hidden texture for them; it looked sort of like a wide-open mouth and would have looked like this in-game if you used it.
Not Attacks First

Axolotls are passive towards the player and won’t attack you; they can even be attached to leads and moved.
Pick in Bucket

You can pick them up in buckets.; it will even net you a fitting advancement!
Rename of Bucket

If you rename the bucket in an anvil, the Axolotl will name it when you spawn it.
Left Fewer

Axolotls are small salamanders living in Mexico; So Mojang added them to raise awareness, just like they did with pandas, turtles, and bees.
Attack on Aquatic Mobs

While they are passive and friendly to the player, they will attack almost all other aquatic mobs. It includes aggressive ones like drowned and elderly guardians, which means you can have an Axolotl army fighting with you.
Removal Mining Fatigue

If you kill the mobs one of these; Axolotls is targeting, they shall give you regeneration and remove mining fatigue. You shall even get an achievement for teaming up; it is like these Lil guys are there to help you conquer monuments.
Breed Axolotls

You can breed axolotls by using buckets of tropical fish. But not the tropical fish item It is because, in real life, axolotls only live as fish.
Bucket of Axolotls in a Dispenser

You can put a bucket of axolotls in a dispenser and use Redstone to spawn your friend automatically.
Survival

Axolotls can survive out of water for a short time. But will always move towards the nearest water source as they die after being on land for 5 minutes. However, they won’t die during rain as fish do.
Color Variants

There are currently five axolotls colour variants in the game, but there were six. The extra unreleased one is a green variant, but you might be seeing them in the future on the topic of all of their different colours. Each Axolotl has exactly a 1 in 1200 chance to be blue. There are around 1200 axolotls left in the wild and a super small number that we need to try and increase. Blue axolotls don’t exist in real life.
Lucy

Most of the time, it’ll just take after its parents, though! One of the other five colors is the white and pink ‘leucistic’ axolotls. But in texture files, it’s just called ‘lucy’. It must have been too hard for Mojang to spell over and over.