Can boesemani rainbowfish live with lemon tetras?

Verdict
Yes

Yes. Boesemani rainbowfish and lemon tetras 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 Lemon tetraLemon tetra72–82°F · pH 5.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Boesemani rainbowfish 75–82°Lemon tetra 72–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Boesemani rainbowfish 7–8Lemon tetra 5.5–7.5
The green band is the pH both tolerate.

Size to scale

Boesemani rainbowfish · 4 inLemon tetra · 2 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 rainbowfishLemon tetra
Temperature75–82 °F72–82 °F
pH7–85.5–7.5
Adult size4.0 in2.0 in
Minimum tank30 gal15 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 lemon tetras

All lemon tetra tank mates

Questions

Can boesemani rainbowfish live with lemon tetras?

Yes. Boesemani rainbowfish and lemon tetras 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 lemon tetras?

75–82 °F. Boesemani rainbowfish need 75–82 °F, lemon tetras need 72–82 °F.

What size tank do boesemani rainbowfish and lemon tetras need together?

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