Guppy vs Tiger Barb: can they live together?

A structured comparison of water overlap, adult size, social needs and behavioral risk.

avoid

Poor pairing in a typical community

Tiger Barbs are persistent fin-nippers and this pairing exposes slow or long fins to repeated harassment.

Practical response: Choose robust, fast tankmates without trailing fins, or house the long-finned species separately.

Guppy

Adult size
5 cm / 2 in
Tank reference
40+ L / 10.6+ US gal
Group
3+
Zone
top
Temperature
22–28°C / 71.6–82.4°F

Tiger Barb

Adult size
7 cm / 2.8 in
Tank reference
90+ L / 23.8+ US gal
Group
8+
Zone
mid
Temperature
20–27°C / 68–80.6°F

Water parameter overlap

Temperature
22–27°C / 71.6–80.6°F shared range
pH
pH 7.0–8.0 shared range

Behavior and space

A prolific livebearer; plan for fry or single-sex groups and avoid persistent fin-nippers. Fast, assertive schooling fish; larger groups help, but long-finned tankmates remain a poor choice.

A compatibility answer should also consider the actual tank dimensions, number of each fish, filtration, planting and other occupants. Two species can be reasonable together in a long, structured aquarium yet become a poor pairing when compressed into a small footprint.

Common questions

Can Guppy live with Tiger Barb?

The StockingLab verdict is avoid: Tiger Barbs are persistent fin-nippers and this pairing exposes slow or long fins to repeated harassment.

Do their temperatures overlap?

22–27°C / 71.6–80.6°F shared range.

Should I trust compatibility calculators completely?

No. Individual behavior, sex ratios, breeding condition, aquascape and tank size can change the outcome. Use the result to identify risks, then verify care requirements before purchase.