To breed axolotls in Minecraft, follow these steps:

• Find and capture two axolotls : Axolotls spawn naturally in lush cave biomes, usually in water blocks near clay. Use a water bucket to safely catch and transport them

• Catch tropical fish : You need buckets of tropical fish to breed axolotls. Tropical fish can be found in warm ocean biomes, coral reefs, mangrove swamps, or lush caves. Use an empty bucket to catch them

• Bring the axolotls close together in water : Place the two axolotls near each other in a water-filled enclosure or breeding area

• Feed each axolotl a bucket of tropical fish : Right-click or use the action button with the bucket of tropical fish on each axolotl. This will put them into "love mode," indicated by hearts above their heads

• Wait for the baby axolotl to spawn : After entering love mode, the two axolotls will breed and produce a baby axolotl. The baby will follow its parents and grow into an adult after about 20 minutes, which can be sped up by feeding it more tropical fish buckets

• Cooldown period : Parents have a breeding cooldown of 5 minutes in Java Edition or 1 minute in Bedrock Edition before they can breed again

Additional notes:

• The baby axolotl’s color is randomly inherited from the parents, with a very small chance (about 1 in 1,200) of it being the rare blue axolotl

• Building a breeding area near tropical fish spawn biomes and using conduits or water breathing potions can make the process easier

In summary, breeding axolotls requires feeding two adult axolotls buckets of tropical fish while they are close together in water, then waiting for a baby axolotl to spawn