Can bristlenose plecos live with kissing gouramis?

Verdict
Yes

Yes, bristlenose plecos and kissing gouramis can live together. Both are fine at 73–81°F. Plan on at least 55 gal.

Bristlenose plecoBristlenose pleco73–81°F · pH 6.5–7.5 Kissing gouramiKissing gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–81°Bristlenose pleco 73–81°Kissing gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Bristlenose pleco 6.5–7.5Kissing gourami 6–8
The green band is the pH both tolerate.

Size to scale

Bristlenose pleco · 5 inKissing gourami · 10 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

Bristlenose plecoKissing gourami
Temperature73–81 °F72–82 °F
pH6.5–7.56–8
Adult size5.0 in10.0 in
Minimum tank30 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomMiddle
GroupAlone or in pairsAlone or in pairs
DietHerbivoreOmnivore

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Better tank mates for kissing gouramis

All kissing gourami tank mates

Questions

Can bristlenose plecos live with kissing gouramis?

Yes, bristlenose plecos and kissing gouramis can live together. Both are fine at 73–81°F. Plan on at least 55 gal.

What temperature suits both bristlenose plecos and kissing gouramis?

73–81 °F. Bristlenose plecos need 73–81 °F, kissing gouramis need 72–82 °F.

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

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