Can kribensis live with boesemani rainbowfish?

Verdict
Yes

Yes. Kribensis and boesemani rainbowfish make a good pair. Both are fine at 75–80°F. Plan on at least 30 gal.

KribensisKribensis75–80°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: 75–80°Kribensis 75–80°Boesemani rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Kribensis 6–7.5Boesemani rainbowfish 7–8
The green band is the pH both tolerate.

Size to scale

Kribensis · 4 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

KribensisBoesemani rainbowfish
Temperature75–80 °F75–82 °F
pH6–7.57–8
Adult size4.0 in4.0 in
Minimum tank30 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for kribensis

All kribensis tank mates

Better tank mates for boesemani rainbowfish

All boesemani rainbowfish tank mates

Questions

Can kribensis live with boesemani rainbowfish?

Yes. Kribensis and boesemani rainbowfish make a good pair. Both are fine at 75–80°F. Plan on at least 30 gal.

What temperature suits both kribensis and boesemani rainbowfish?

75–80 °F. Kribensis need 75–80 °F, boesemani rainbowfish need 75–82 °F.

What size tank do kribensis and boesemani rainbowfish need together?

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