Can pearl gouramis live with arowanas?

Verdict
No

No. Pearl gouramis and arowanas should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 5 inches pearl gouramis do.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 77–82°Pearl gourami 77–82°Silver arowana 75–86°
The green band is the temperature range both can live in.
456789Both: 6–7Pearl gourami 6–7.5Silver arowana 6–7
The green band is the pH both tolerate.

Size to scale

Pearl gourami · 5 inSilver arowana · 36 in0"6"12"18"24"30"36"
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 gouramiSilver arowana
Temperature77–82 °F75–86 °F
pH6–7.56–7
Adult size5.0 in36.0 in
Minimum tank30 gal250 gal
TemperamentPeacefulAggressive
Swims atTopTop
GroupAlone or in pairsOne per tank
DietOmnivoreCarnivore

Better tank mates for pearl gouramis

All pearl gourami tank mates

Questions

Can pearl gouramis live with arowanas?

No. Pearl gouramis and arowanas should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 5 inches pearl gouramis do.

What temperature suits both pearl gouramis and arowanas?

77–82 °F. Pearl gouramis need 77–82 °F, arowanas need 75–86 °F.

What size tank do pearl gouramis and arowanas need together?

At least 250 gal, set by the silver arowana. Add space for each extra fish.