Can pearl gouramis live with clown loaches?

Verdict
Yes

Yes. Pearl gouramis and clown loaches make a good pair. Both are fine at 77–82°F. Plan on at least 75 gal.

Pearl gouramiPearl gourami77–82°F · pH 6–7.5 Clown loachClown loach77–86°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 77–82°Pearl gourami 77–82°Clown loach 77–86°
The green band is the temperature range both can live in.
456789Both: 6–7.5Pearl gourami 6–7.5Clown loach 6–7.5
The green band is the pH both tolerate.

Size to scale

Pearl gourami · 5 inClown loach · 8 in0"1"2"3"4"5"6"7"8"
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 gouramiClown loach
Temperature77–82 °F77–86 °F
pH6–7.56–7.5
Adult size5.0 in8.0 in
Minimum tank30 gal75 gal
TemperamentPeacefulPeaceful
Swims atTopBottom
GroupAlone or in pairsGroups of 5+
DietOmnivoreOmnivore

Better tank mates for pearl gouramis

All pearl gourami tank mates

Better tank mates for clown loaches

All clown loach tank mates

Questions

Can pearl gouramis live with clown loaches?

Yes. Pearl gouramis and clown loaches make a good pair. Both are fine at 77–82°F. Plan on at least 75 gal.

What temperature suits both pearl gouramis and clown loaches?

77–82 °F. Pearl gouramis need 77–82 °F, clown loaches need 77–86 °F.

What size tank do pearl gouramis and clown loaches need together?

At least 75 gal, set by the clown loach. Add space for each extra fish.