Can ember tetras live with dwarf neon rainbowfish?

Verdict
Yes

Yes, ember tetras and dwarf neon rainbowfish can live together. Both are fine at 75–82°F. Plan on at least 20 gal.

Ember tetraEmber tetra73–84°F · pH 5.5–7 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°Ember tetra 73–84°Dwarf neon rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7Ember tetra 5.5–7Dwarf neon rainbowfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Ember tetra · 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

Ember tetraDwarf neon rainbowfish
Temperature73–84 °F75–82 °F
pH5.5–76.5–7.5
Adult size0.8 in2.5 in
Minimum tank5 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Questions

Can ember tetras live with dwarf neon rainbowfish?

Yes, ember tetras and dwarf neon rainbowfish can live together. Both are fine at 75–82°F. Plan on at least 20 gal.

What temperature suits both ember tetras and dwarf neon rainbowfish?

75–82 °F. Ember tetras need 73–84 °F, dwarf neon rainbowfish need 75–82 °F.

What size tank do ember tetras and dwarf neon rainbowfish need together?

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