Can bolivian rams live with boesemani rainbowfish?

Verdict
Yes

Yes. Bolivian rams and boesemani rainbowfish make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

Bolivian ramBolivian ram72–79°F · pH 6–7.5 Boesemani rainbowfishBoesemani rainbowfish75–82°F · pH 7–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Bolivian ram 72–79°Boesemani rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Bolivian ram 6–7.5Boesemani rainbowfish 7–8
The green band is the pH both tolerate.

Size to scale

Bolivian ram · 3 inBoesemani rainbowfish · 4 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

Bolivian ramBoesemani rainbowfish
Temperature72–79 °F75–82 °F
pH6–7.57–8
Adult size3.0 in4.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulPeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for bolivian rams

All bolivian ram tank mates

Better tank mates for boesemani rainbowfish

All boesemani rainbowfish tank mates

Questions

Can bolivian rams live with boesemani rainbowfish?

Yes. Bolivian rams and boesemani rainbowfish make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both bolivian rams and boesemani rainbowfish?

75–79 °F. Bolivian rams need 72–79 °F, boesemani rainbowfish need 75–82 °F.

What size tank do bolivian rams and boesemani rainbowfish need together?

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