Question 1

Can axolotls live with fish?

Accepted Answer

No. Axolotls will eat small fish, and many fish will nip at axolotl gills. Keep axolotls in a species-only setup. The only viable tank mates are other axolotls of the exact same size.

Question 2

How often should I change my axolotl's water?

Accepted Answer

Perform a 20–30% water change weekly using dechlorinated water matched to tank temperature. For smaller or heavily stocked tanks, twice-weekly changes may be needed to keep ammonia at zero.

Question 3

My axolotl is floating — is that normal?

Accepted Answer

Brief floating after feeding is normal. Persistent floating or inability to dive suggests a gas bubble problem or internal infection. Fast the axolotl for 2–3 days in clean, cold water first; if floating continues, see an exotic vet.

Question 4

Do axolotls recognize their owners?

Accepted Answer

Axolotls learn to associate their keeper's approach with feeding and will often swim to the front of the tank. They don't bond the way mammals do, but they're more interactive than most fish.

Question 5

How long can an axolotl go without food?

Accepted Answer

Healthy adults can safely fast for 2–3 weeks. Brief fasting of 2–5 days is sometimes used as a digestive reset. Juveniles under 6 months should not go more than 3–4 days without food.

Question 6

Can axolotls regenerate their entire body?

Accepted Answer

Axolotls can regrow entire limbs, gill stalks, portions of the spinal cord, heart tissue, and parts of the brain — repeatedly, at any age. They cannot recover from catastrophic injury, but minor nips and injuries typically heal on their own in clean water.