Can discus live with bristlenose plecos?

Verdict
No

No. Discus and bristlenose plecos should not share a tank. No shared temperature. Discus need 82–88°F, bristlenose plecos need 73–81°F.

DiscusDiscus82–88°F · pH 5.5–7 Bristlenose plecoBristlenose pleco73–81°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Discus 82–88°Bristlenose pleco 73–81°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 6.5–7Discus 5.5–7Bristlenose pleco 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Discus · 6 inBristlenose pleco · 5 in0"1"2"3"4"5"6"
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

DiscusBristlenose pleco
Temperature82–88 °F73–81 °F
pH5.5–76.5–7.5
Adult size6.0 in5.0 in
Minimum tank55 gal30 gal
TemperamentPeacefulPeaceful
Swims atMiddleBottom
GroupGroups of 5+Alone or in pairs
DietCarnivoreHerbivore

Better tank mates for discus

All discus tank mates

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Questions

Can discus live with bristlenose plecos?

No. Discus and bristlenose plecos should not share a tank. No shared temperature. Discus need 82–88°F, bristlenose plecos need 73–81°F.

What temperature suits both discus and bristlenose plecos?

None. Discus need 82–88 °F and bristlenose plecos need 73–81 °F, so the ranges do not meet.

What size tank do discus and bristlenose plecos need together?

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