Can guppies live with tiger barbs?

Verdict
No

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

GuppyGuppy72–82°F · pH 6.8–7.8 Tiger barbTiger barb72–81°F · pH 6–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–81°Guppy 72–82°Tiger barb 72–81°
The green band is the temperature range both can live in.
456789Both: 6.8–7.5Guppy 6.8–7.8Tiger barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Guppy · 2 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

GuppyTiger barb
Temperature72–82 °F72–81 °F
pH6.8–7.86–7.5
Adult size2.0 in3.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atTopMiddle
GroupGroups of 3+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for guppies

All guppy tank mates

Better tank mates for tiger barbs

All tiger barb tank mates

Questions

Can guppies live with tiger barbs?

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

What temperature suits both guppies and tiger barbs?

72–81 °F. Guppies need 72–82 °F, tiger barbs need 72–81 °F.

What size tank do guppies and tiger barbs need together?

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