Can bettas live with tiger barbs?

Verdict
No

No. Bettas and tiger barbs should not share a tank. Tiger barbs nip fins, and the long fins of bettas are an easy target.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–81°Betta 76–82°Tiger barb 72–81°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Betta 6.5–7.5Tiger barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Betta · 2.5 inTiger barb · 3 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

BettaTiger barb
Temperature76–82 °F72–81 °F
pH6.5–7.56–7.5
Adult size2.5 in3.0 in
Minimum tank5 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atTopMiddle
GroupOne per tankGroups of 6+
DietCarnivoreOmnivore

Better tank mates for bettas

All betta tank mates

Better tank mates for tiger barbs

All tiger barb tank mates

Questions

Can bettas live with tiger barbs?

No. Bettas and tiger barbs should not share a tank. Tiger barbs nip fins, and the long fins of bettas are an easy target.

What temperature suits both bettas and tiger barbs?

76–81 °F. Bettas need 76–82 °F, tiger barbs need 72–81 °F.

What size tank do bettas and tiger barbs need together?

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