Can pearl gouramis live with blue gouramis?

Verdict
Yes

Yes. Pearl gouramis and blue gouramis get along in the same tank. Both are fine at 77–82°F. Plan on at least 30 gal.

Pearl gouramiPearl gourami77–82°F · pH 6–7.5 Blue gouramiBlue gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 77–82°Pearl gourami 77–82°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Pearl gourami 6–7.5Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Pearl gourami · 5 inBlue 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

Pearl gouramiBlue gourami
Temperature77–82 °F72–82 °F
pH6–7.56–8
Adult size5.0 in5.0 in
Minimum tank30 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atTopTop
GroupAlone or in pairsAlone or in pairs
DietOmnivoreOmnivore

Better tank mates for pearl gouramis

All pearl gourami tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can pearl gouramis live with blue gouramis?

Yes. Pearl gouramis and blue gouramis get along in the same tank. Both are fine at 77–82°F. Plan on at least 30 gal.

What temperature suits both pearl gouramis and blue gouramis?

77–82 °F. Pearl gouramis need 77–82 °F, blue gouramis need 72–82 °F.

What size tank do pearl gouramis and blue gouramis need together?

At least 30 gal, set by the pearl gourami. Add space for each extra fish.