Can tiger barbs live with apistogramma?

Verdict
Yes

Yes, tiger barbs and apistogramma can live together. Both are fine at 75–81°F. Plan on at least 30 gal.

Tiger barbTiger barb72–81°F · pH 6–7.5 ApistogrammaApistogramma75–84°F · pH 5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–81°Tiger barb 72–81°Apistogramma 75–84°
The green band is the temperature range both can live in.
456789Both: 6–7Tiger barb 6–7.5Apistogramma 5–7
The green band is the pH both tolerate.

Size to scale

Tiger barb · 3 inApistogramma · 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

Tiger barbApistogramma
Temperature72–81 °F75–84 °F
pH6–7.55–7
Adult size3.0 in3.0 in
Minimum tank30 gal20 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for tiger barbs

All tiger barb tank mates

Better tank mates for apistogramma

All apistogramma tank mates

Questions

Can tiger barbs live with apistogramma?

Yes, tiger barbs and apistogramma can live together. Both are fine at 75–81°F. Plan on at least 30 gal.

What temperature suits both tiger barbs and apistogramma?

75–81 °F. Tiger barbs need 72–81 °F, apistogramma need 75–84 °F.

What size tank do tiger barbs and apistogramma need together?

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