Can bristlenose plecos live with pearl gouramis?

Verdict
Yes

Yes. Bristlenose plecos and pearl gouramis make a good pair. Both are fine at 77–81°F. Plan on at least 30 gal.

Bristlenose plecoBristlenose pleco73–81°F · pH 6.5–7.5 Pearl gouramiPearl gourami77–82°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 77–81°Bristlenose pleco 73–81°Pearl gourami 77–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Bristlenose pleco 6.5–7.5Pearl gourami 6–7.5
The green band is the pH both tolerate.

Size to scale

Bristlenose pleco · 5 inPearl gourami · 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

Bristlenose plecoPearl gourami
Temperature73–81 °F77–82 °F
pH6.5–7.56–7.5
Adult size5.0 in5.0 in
Minimum tank30 gal30 gal
TemperamentPeacefulPeaceful
Swims atBottomTop
GroupAlone or in pairsAlone or in pairs
DietHerbivoreOmnivore

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Better tank mates for pearl gouramis

All pearl gourami tank mates

Questions

Can bristlenose plecos live with pearl gouramis?

Yes. Bristlenose plecos and pearl gouramis make a good pair. Both are fine at 77–81°F. Plan on at least 30 gal.

What temperature suits both bristlenose plecos and pearl gouramis?

77–81 °F. Bristlenose plecos need 73–81 °F, pearl gouramis need 77–82 °F.

What size tank do bristlenose plecos and pearl gouramis need together?

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