The Short Answer
Two axolotls in one tank will bite each other's gills, toes, tails, and limbs. One axolotl per tank, always.
Why This Works Badly
Axolotls strike at anything that moves nearby that might be food, including other axolotls. The species is naturally solitary in the wild and tolerates conspecifics only briefly during breeding.
Temperature Compatibility
Same range (60-68F), so the temperature isn't the issue.
How Other Axolotls Injures Axolotls
Constant. Adults amputate each other's limbs and tails. Juveniles bite gills relentlessly. Even sibling axolotls raised together still injure each other once they reach 4+ inches.
The One Exception
Brief temporary cohabitation for breeding only (24-48 hours), then separation. Never as a permanent setup.
Symptoms to Watch For
- Missing toes or tail segments
- Bitten gill filaments
- Visible bite marks on flanks
- One axolotl always hiding while the other dominates
What to Do Instead
Get a second tank and a second axolotl. Don't try to pair them up.
Frequently Asked
Can axolotls live with other axolotls?
Two axolotls in one tank will bite each other's gills, toes, tails, and limbs. One axolotl per tank, always.
What about temperature?
Same range (60-68F), so the temperature isn't the issue.
How does other axolotls hurt the axolotl?
Constant. Adults amputate each other's limbs and tails. Juveniles bite gills relentlessly. Even sibling axolotls raised together still injure each other once they reach 4+ inches.
What problems should I watch for?
Missing toes or tail segments. Bitten gill filaments. Visible bite marks on flanks. One axolotl always hiding while the other dominates.
What should I do instead?
Get a second tank and a second axolotl. Don't try to pair them up.