Can tiger barbs live with clown plecos?

Verdict
Yes

Yes. Tiger barbs and clown plecos get along in the same tank. Both are fine at 73–81°F. Plan on at least 30 gal.

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–81°Tiger barb 72–81°Clown pleco 73–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Tiger barb 6–7.5Clown pleco 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Tiger barb · 3 inClown pleco · 3.5 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 barbClown pleco
Temperature72–81 °F73–82 °F
pH6–7.56.5–7.5
Adult size3.0 in3.5 in
Minimum tank30 gal20 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreHerbivore

Better tank mates for tiger barbs

All tiger barb tank mates

Better tank mates for clown plecos

All clown pleco tank mates

Questions

Can tiger barbs live with clown plecos?

Yes. Tiger barbs and clown plecos get along in the same tank. Both are fine at 73–81°F. Plan on at least 30 gal.

What temperature suits both tiger barbs and clown plecos?

73–81 °F. Tiger barbs need 72–81 °F, clown plecos need 73–82 °F.

What size tank do tiger barbs and clown plecos need together?

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