Can axolotls live with bristlenose plecos?

Verdict

No. Axolotls and bristlenose plecos should not share a tank. Axolotls are coldwater animals (60–66°F); bristlenose plecos need 73–81°F. No temperature suits both.

Axolotl60–66°F · pH 6.5–8

Bristlenose pleco73–81°F · pH 6.5–7.5

What to watch

Deal breakerAxolotls are coldwater animals (60–66°F); bristlenose plecos need 73–81°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	Bristlenose pleco
Temperature	60–66 °F	73–81 °F
pH	6.5–8	6.5–7.5
Adult size	10.0 in	5.0 in
Minimum tank	20 gal	30 gal
Temperament	Peaceful	Peaceful
Swims at	Bottom	Bottom
Group	Alone or in pairs	Alone or in pairs
Diet	Carnivore	Herbivore

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Questions

Can axolotls live with bristlenose plecos?

No. Axolotls and bristlenose plecos should not share a tank. Axolotls are coldwater animals (60–66°F); bristlenose plecos need 73–81°F. No temperature suits both.

What temperature suits both axolotls and bristlenose plecos?

None. Axolotls need 60–66 °F and bristlenose plecos need 73–81 °F, so the ranges do not meet.

What size tank do axolotls and bristlenose plecos need together?

At least 30 gal, set by the bristlenose pleco. Add space for each extra fish.