Can axolotls live with upside down catfish?

Verdict

No. Axolotls and upside down catfish should not share a tank. Axolotls are coldwater animals (60–66°F); upside down catfish need 72–79°F. No temperature suits both.

Axolotl60–66°F · pH 6.5–8

Upside down catfish72–79°F · pH 6–7.5

What to watch

Deal breakerAxolotls are coldwater animals (60–66°F); upside down catfish need 72–79°F. No temperature suits both.
Deal breakerFish nibble at axolotl gills, and axolotls swallow small fish. Keep axolotls on their own.

What works

pH 6.5–7.5 suits both.

Water side by side

The ranges do not meet, so one of them would always be too warm or too cold.

The green band is the pH both tolerate.

Size to scale

Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

	Axolotl	Upside down catfish
Temperature	60–66 °F	72–79 °F
pH	6.5–8	6–7.5
Adult size	10.0 in	4.0 in
Minimum tank	20 gal	30 gal
Temperament	Peaceful	Peaceful
Swims at	Bottom	Bottom
Group	Alone or in pairs	Groups of 3+
Diet	Carnivore	Omnivore

Better tank mates for upside down catfish

All upside down catfish tank mates

Questions

Can axolotls live with upside down catfish?

No. Axolotls and upside down catfish should not share a tank. Axolotls are coldwater animals (60–66°F); upside down catfish need 72–79°F. No temperature suits both.

What temperature suits both axolotls and upside down catfish?

None. Axolotls need 60–66 °F and upside down catfish need 72–79 °F, so the ranges do not meet.

What size tank do axolotls and upside down catfish need together?

At least 30 gal, set by the upside down catfish. Add space for each extra fish.