Can arowanas live with pygmy corys?

Verdict
No

No. Arowanas and pygmy corys should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 1 inches pygmy corys do.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Silver arowana 75–86°Pygmy cory 72–79°
The green band is the temperature range both can live in.
456789Both: 6–7Silver arowana 6–7Pygmy cory 6–7.5
The green band is the pH both tolerate.

Size to scale

Silver arowana · 36 inPygmy cory · 1 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

Silver arowanaPygmy cory
Temperature75–86 °F72–79 °F
pH6–76–7.5
Adult size36.0 in1.0 in
Minimum tank250 gal10 gal
TemperamentAggressivePeaceful
Swims atTopMiddle
GroupOne per tankGroups of 6+
DietCarnivoreOmnivore

Better tank mates for pygmy corys

All pygmy cory tank mates

Questions

Can arowanas live with pygmy corys?

No. Arowanas and pygmy corys should not share a tank. An adult silver arowana eats fish that fit in its mouth, and at 1 inches pygmy corys do.

What temperature suits both arowanas and pygmy corys?

75–79 °F. Arowanas need 75–86 °F, pygmy corys need 72–79 °F.

What size tank do arowanas and pygmy corys need together?

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