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The Axolotl Care Cheat-Sheet

The perma-smiling cold-water salamander. Get the water and temperature right and everything else is easy. Print it (or “Save as PDF”) and keep it by the tank.

A cozy Bognook cartoon of the Axolotl.
Bognookhonest amphibian care · bognook.com
Axolotl — Care Cheat-SheetIntermediate

Hardy, but demands cold water + a fully cycled tank.

📋 At a glance

Tank
20 gal long minimum (1 adult), +10 gal each extra
Temp
16–18°C / 60–64°F — cold water, NO heater
Floor
Bare bottom or fine sand (never gravel)
Food
Earthworms/nightcrawlers (staple) · soft sinking pellets
Lifespan
10–15+ years

Water: Ammonia 0 · Nitrite 0 · Nitrate <20 ppm · pH 7.0–8.0 · always dechlorinate

🛒 Before you buy

  • 20 gal+ tank, cycled for 4–8 weeks BEFORE the axolotl
  • Sponge or baffled filter (gentle flow), thermometer, liquid test kit
  • Fine sand or bare bottom + a shaded hide
  • A summer cooling plan (fan / chiller) — the setup often costs more than the animal

A healthy one: Full, fluffy gills · four legs and all toes · alert · no fungus or injuries · kept on sand (not gravel) in cool water.

🚨 See a vet / act now if…

  • Gills curling forward or shrinking
  • Not eating for over a week
  • Floating, bloating, or gulping air
  • Cotton-like fungus, or red/irritated skin

Cool them down, reduce stress, and contact an exotics vet — most issues are reversible if caught early.

⛔ Never

  • Warm water
  • Gravel substrate
  • Handling

🌿 Golden rules (all amphibians)

  • Cycle the tank BEFORE the animal (ammonia = 0).
  • Always dechlorinate tap water.
  • Cool beats warm — most amphibians are cool/cold species.
  • Look, don’t handle — their skin absorbs oils & soaps.
  • Buy captive-bred, never wild-caught. Quarantine new arrivals.
  • Never release a pet into the wild (it spreads disease).
  • A real setup costs more than the animal — budget for it.
  • When in doubt, ask — no shame in learning. 💚
Written by keepers · research-backed · updated July 2026Not a substitute for species research or an exotics vet. © Bognook · bognook.com · share freely 💚

Common axolotl questions

How hard are Axolotls to keep — are they good for beginners?

Intermediate. Hardy, but demands cold water + a fully cycled tank.

What do Axolotls eat?

Earthworms/nightcrawlers (staple) · soft sinking pellets

What size tank do Axolotls need?

20 gal long minimum (1 adult), +10 gal each extra

What temperature do Axolotls need?

16–18°C / 60–64°F — cold water, NO heater

What substrate do Axolotls need?

Bare bottom or fine sand (never gravel)

How long do Axolotls live?

10–15+ years

What water parameters do Axolotls need?

Ammonia 0 · Nitrite 0 · Nitrate <20 ppm · pH 7.0–8.0 · always dechlorinate

What are the signs Axolotls are sick?

See an exotics vet if you notice: Gills curling forward or shrinking; Not eating for over a week; Floating, bloating, or gulping air; Cotton-like fungus, or red/irritated skin.