Don't Combine
These will kill your axolotl, the tankmate, or both.
Other Axolotls
AvoidAxolotls 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.
Goldfish
AvoidGoldfish look like good cold-water tankmates because they tolerate cooler water than tropical fish. But they're aggressive feeders, eat axolotl gills, and need temperatures slightly above the axolotl comfort zone.
Bettas (Siamese Fighting Fish)
AvoidBettas are tropical fish that come from warm Southeast Asian waters. They cannot survive long-term below 72F. Axolotls cannot survive long-term above 72F. There's no temperature that works for both.
Shrimp
AvoidAlmost all aquarium shrimp species are small enough that axolotls will eat them. Ghost shrimp, cherry shrimp, Amano shrimp — all are food, not tankmates.
Guppies
AvoidGuppies are tropical fish that don't tolerate cold water. Axolotls eat them as live food. The combination guarantees rapid death for at least one species.
Plecos (Suckermouth Catfish)
AvoidPlecos are tropical catfish that scrape algae off surfaces. In axolotl tanks, they scrape the axolotl's slime coat off the skin, causing serious damage. They also need warm water.
Catfish (General)
AvoidCatfish is a broad category covering tropical scavengers, large predators, and warm-water bottom feeders. Almost none coexist safely with axolotls.
Frogs
AvoidTropical frogs (most aquarium-kept species) need warm water. Even cold-tolerant frogs are predators that eat small axolotls or compete for food. Axolotls eat smaller frogs.
Turtles
AvoidAquatic turtles are predatory and view axolotls as prey. Even smaller turtle species can amputate axolotl limbs. Turtles also need very different tank conditions.
Caution
Works in specific scenarios. Read first.
Snails
CautionLarge snail species (mystery snails, mature nerite snails) generally survive in axolotl tanks. Small snails (pond snails, bladder snails, juvenile mystery snails) get eaten quickly. Some snails also rasp axolotl slime coat.
White Cloud Mountain Minnows
CautionOf all cold-water fish, white cloud mountain minnows have the best temperature match. The cohabitation still fails for other reasons — predation and disease.
Safe Tankmates
Specific options that genuinely work.
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