Can dwarf neon rainbowfish live with pygmy corys?

Verdict
Yes

Yes. Dwarf neon rainbowfish and pygmy corys get along in the same tank. Both are fine at 75–79°F. Plan on at least 20 gal.

Dwarf neon rainbowfishDwarf neon rainbowfish75–82°F · pH 6.5–7.5 Pygmy coryPygmy cory72–79°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Dwarf neon rainbowfish 75–82°Pygmy cory 72–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Dwarf neon rainbowfish 6.5–7.5Pygmy cory 6–7.5
The green band is the pH both tolerate.

Size to scale

Dwarf neon rainbowfish · 2.5 inPygmy cory · 1 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

Dwarf neon rainbowfishPygmy cory
Temperature75–82 °F72–79 °F
pH6.5–7.56–7.5
Adult size2.5 in1.0 in
Minimum tank20 gal10 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Better tank mates for pygmy corys

All pygmy cory tank mates

Questions

Can dwarf neon rainbowfish live with pygmy corys?

Yes. Dwarf neon rainbowfish and pygmy corys get along in the same tank. Both are fine at 75–79°F. Plan on at least 20 gal.

What temperature suits both dwarf neon rainbowfish and pygmy corys?

75–79 °F. Dwarf neon rainbowfish need 75–82 °F, pygmy corys need 72–79 °F.

What size tank do dwarf neon rainbowfish and pygmy corys need together?

At least 20 gal, set by the dwarf neon rainbowfish. Add space for each extra fish.