Can axolotls live with tiger barbs?

Verdict
No

No. Axolotls and tiger barbs should not share a tank. Axolotls are coldwater animals (60–66°F); tiger barbs need 72–81°F. No temperature suits both.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Axolotl 60–66°Tiger barb 72–81°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 6.5–7.5Axolotl 6.5–8Tiger barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Axolotl · 10 inTiger barb · 3 in0"2"4"6"8"10"
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

AxolotlTiger barb
Temperature60–66 °F72–81 °F
pH6.5–86–7.5
Adult size10.0 in3.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietCarnivoreOmnivore

Better tank mates for tiger barbs

All tiger barb tank mates

Questions

Can axolotls live with tiger barbs?

No. Axolotls and tiger barbs should not share a tank. Axolotls are coldwater animals (60–66°F); tiger barbs need 72–81°F. No temperature suits both.

What temperature suits both axolotls and tiger barbs?

None. Axolotls need 60–66 °F and tiger barbs need 72–81 °F, so the ranges do not meet.

What size tank do axolotls and tiger barbs need together?

At least 30 gal, set by the tiger barb. Add space for each extra fish.