Axolotl
Ambystoma mexicanum
The Axolotl (Ambystoma mexicanum) is a peaceful amphibian that's a good step up once you have a little experience. Give it a tank of at least 110 litres (29 US gallons), water held at 57-68°F, and a pH of 7-8.
Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Lake Xochimilco, Mexico City - critically endangered in the wild.
- Central America & Mexico
Regional colours match the stocking calculator's origin map.
Axolotl Tank Setup
Give them at least 110 litres (29 US gallons) with cool water around 57-68°F and a pH of 7-8. They aren't fish - skip gravel they could swallow, keep the flow gentle, and avoid tank mates small enough to be eaten. They grow to around 30 cm, so plan the tank size and filtration for a full-grown adult rather than the small juvenile you see in the shop.
What Do Axolotls Eat?
They're meat-eaters, so feed good-quality frozen or gel foods rather than relying on generic flake. Go easy on portions - leftover protein fouls the water faster than plant foods do.
Axolotl Tank Mates
Not a fish - aquatic salamander. Cold water only; cannot tolerate temps above 22°C. Will eat anything that fits in its mouth including tankmates. Species-only or with large, fast fish. The Axolotl is peaceful, which is the first thing to weigh up when you choose tank mates. It's predatory, so anything small enough to fit in its mouth will be treated as food rather than a companion. Before you buy, run your full stocking list through our stocking calculator. It weighs temperament, adult size, and water needs together, which a single species page can't do on its own.
Are Axolotls Good for Beginners?
Not a sensible first purchase. Get the tank cycled, keep easier fish stable for a year, then revisit if you still want the extra work this species demands.
Axolotl - frequently asked questions
What size tank do Axolotls need?
Axolotls need a tank of at least 110 litres (29 US gallons). A bigger tank is always easier to keep stable, and gives them more room to settle in and behave naturally.
What water parameters do Axolotls need?
Keep them at 57-68°F with a pH of 7-8, steady rather than chased to an exact figure. In a cycled tank, ammonia and nitrite should both read 0 ppm, with nitrate kept low through regular water changes.
What do Axolotls eat?
Axolotls are meat-eaters. Feed good-quality frozen or gel foods rather than relying on generic flake, and don't overfeed. Feed small amounts once or twice a day, and remove anything they don't eat.
Are Axolotls good for beginners?
Axolotls are best for keepers with a little experience. They are manageable once you test water regularly and catch problems early; a complete beginner may prefer something more forgiving first.
Common mistakes with Axolotls
- Underestimating tank size - the minimum footprint is 110 litres (29 US gallons); impulse buying into a smaller tank leads to stress and shortened lifespan.
Building a community? Run the full list through the stocking calculator before you add anything else.
Great tank mates
Chosen from temperament, overlapping temperature/pH bands, plausible minimum tank footprints, and size versus yours in App-aquatic data. Hobby nuance always wins - verify stocking and temperament before purchasing.
Fish to avoid mixing with Axolotls
These well-known species are commonly sold alongside this fish but are not recommended tank mates - verify before purchasing.
- Rosy BarbFin nipper - will shred the fins of peaceful fish
- Zebra DanioFin nipper - will shred the fins of peaceful fish
- Common GoldfishGoldfish - prefer cooler, harder water that tropical fish cannot tolerate
