Can honey gouramis live with pencilfish?

Verdict
Yes

Yes. Honey gouramis and pencilfish get along in the same tank. Both are fine at 75–82°F. Plan on at least 15 gal.

Honey gouramiHoney gourami72–82°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: 75–82°Honey gourami 72–82°Pencilfish 75–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Honey gourami 6–7.5Pencilfish 5–7.5
The green band is the pH both tolerate.

Size to scale

Honey gourami · 2 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

Honey gouramiPencilfish
Temperature72–82 °F75–82 °F
pH6–7.55–7.5
Adult size2.0 in2.0 in
Minimum tank10 gal15 gal
TemperamentPeacefulPeaceful
Swims atTopMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for honey gouramis

All honey gourami tank mates

Better tank mates for pencilfish

All pencilfish tank mates

Questions

Can honey gouramis live with pencilfish?

Yes. Honey gouramis and pencilfish get along in the same tank. Both are fine at 75–82°F. Plan on at least 15 gal.

What temperature suits both honey gouramis and pencilfish?

75–82 °F. Honey gouramis need 72–82 °F, pencilfish need 75–82 °F.

What size tank do honey gouramis and pencilfish need together?

At least 15 gal, set by the pencilfish. Add space for each extra fish.