Can boesemani rainbowfish live with dwarf neon rainbowfish?

Verdict
Yes

Yes. Boesemani rainbowfish and dwarf neon rainbowfish get along in the same tank. Both are fine at 75–82°F. Plan on at least 30 gal.

Boesemani rainbowfishBoesemani rainbowfish75–82°F · pH 7–8 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°Boesemani rainbowfish 75–82°Dwarf neon rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Boesemani rainbowfish 7–8Dwarf neon rainbowfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Boesemani rainbowfish · 4 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

Boesemani rainbowfishDwarf neon rainbowfish
Temperature75–82 °F75–82 °F
pH7–86.5–7.5
Adult size4.0 in2.5 in
Minimum tank30 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for boesemani rainbowfish

All boesemani rainbowfish tank mates

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Questions

Can boesemani rainbowfish live with dwarf neon rainbowfish?

Yes. Boesemani rainbowfish and dwarf neon rainbowfish get along in the same tank. Both are fine at 75–82°F. Plan on at least 30 gal.

What temperature suits both boesemani rainbowfish and dwarf neon rainbowfish?

75–82 °F. Boesemani rainbowfish need 75–82 °F, dwarf neon rainbowfish need 75–82 °F.

What size tank do boesemani rainbowfish and dwarf neon rainbowfish need together?

At least 30 gal, set by the boesemani rainbowfish. Add space for each extra fish.