Can chili rasboras live with dwarf neon rainbowfish?

Verdict
Yes

Yes. Chili rasboras and dwarf neon rainbowfish make a good pair. Both are fine at 75–82°F. Plan on at least 20 gal.

Chili rasboraChili rasbora75–82°F · pH 4–7 Dwarf neon rainbowfishDwarf neon rainbowfish75–82°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Chili rasbora 75–82°Dwarf neon rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7Chili rasbora 4–7Dwarf neon rainbowfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Chili rasbora · 0.8 inDwarf neon rainbowfish · 2.5 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

Chili rasboraDwarf neon rainbowfish
Temperature75–82 °F75–82 °F
pH4–76.5–7.5
Adult size0.8 in2.5 in
Minimum tank5 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 8+Groups of 6+
DietCarnivoreOmnivore

Better tank mates for chili rasboras

All chili rasbora tank mates

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Questions

Can chili rasboras live with dwarf neon rainbowfish?

Yes. Chili rasboras and dwarf neon rainbowfish make a good pair. Both are fine at 75–82°F. Plan on at least 20 gal.

What temperature suits both chili rasboras and dwarf neon rainbowfish?

75–82 °F. Chili rasboras need 75–82 °F, dwarf neon rainbowfish need 75–82 °F.

What size tank do chili rasboras and dwarf neon rainbowfish need together?

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