Can odessa barbs live with pencilfish?

Verdict
Yes

Yes, odessa barbs and pencilfish can live together. Both are fine at 75–79°F. Plan on at least 30 gal.

Odessa barbOdessa barb70–79°F · pH 6–7.5 PencilfishPencilfish75–82°F · pH 5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Odessa barb 70–79°Pencilfish 75–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Odessa barb 6–7.5Pencilfish 5–7.5
The green band is the pH both tolerate.

Size to scale

Odessa barb · 3 inPencilfish · 2 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

Odessa barbPencilfish
Temperature70–79 °F75–82 °F
pH6–7.55–7.5
Adult size3.0 in2.0 in
Minimum tank30 gal15 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for odessa barbs

All odessa barb tank mates

Better tank mates for pencilfish

All pencilfish tank mates

Questions

Can odessa barbs live with pencilfish?

Yes, odessa barbs and pencilfish can live together. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both odessa barbs and pencilfish?

75–79 °F. Odessa barbs need 70–79 °F, pencilfish need 75–82 °F.

What size tank do odessa barbs and pencilfish need together?

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