TankmateChecker

Can axolotls live with severums?

Verdict

No

No. Axolotls and severums should not share a tank. Axolotls are coldwater animals (60–66°F); severums need 74–84°F. No temperature suits both.

Axolotl

Axolotl60–66°F · pH 6.5–8

Severum

Severum74–84°F · pH 6–7

What to watch

Deal breakerAxolotls are coldwater animals (60–66°F); severums need 74–84°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 suits both.
They use different parts of the tank: axolotls the bottom, severums the mid.

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	Severum
Temperature	60–66 °F	74–84 °F
pH	6.5–8	6–7
Adult size	10.0 in	8.0 in
Minimum tank	20 gal	55 gal
Temperament	Peaceful	Semi-aggressive
Swims at	Bottom	Middle
Group	Alone or in pairs	Alone or in pairs
Diet	Carnivore	Omnivore

Better tank mates for severums

All severum tank mates

Questions

Can axolotls live with severums?

No. Axolotls and severums should not share a tank. Axolotls are coldwater animals (60–66°F); severums need 74–84°F. No temperature suits both.

What temperature suits both axolotls and severums?

None. Axolotls need 60–66 °F and severums need 74–84 °F, so the ranges do not meet.

What size tank do axolotls and severums need together?

At least 55 gal, set by the severum. Add space for each extra fish.