Can sparkling gouramis live with hatchetfish?

Verdict
Yes

Yes. Sparkling gouramis and hatchetfish make a good pair. Both are fine at 75–81°F. Plan on at least 20 gal.

Sparkling gouramiSparkling gourami72–82°F · pH 6–7.5 HatchetfishHatchetfish75–81°F · pH 5.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–81°Sparkling gourami 72–82°Hatchetfish 75–81°
The green band is the temperature range both can live in.
456789Both: 6–7.5Sparkling gourami 6–7.5Hatchetfish 5.5–7.5
The green band is the pH both tolerate.

Size to scale

Sparkling gourami · 1.5 inHatchetfish · 1.5 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

Sparkling gouramiHatchetfish
Temperature72–82 °F75–81 °F
pH6–7.55.5–7.5
Adult size1.5 in1.5 in
Minimum tank5 gal20 gal
TemperamentPeacefulPeaceful
Swims atTopTop
GroupGroups of 4+Groups of 6+
DietOmnivoreCarnivore

Better tank mates for sparkling gouramis

All sparkling gourami tank mates

Better tank mates for hatchetfish

All hatchetfish tank mates

Questions

Can sparkling gouramis live with hatchetfish?

Yes. Sparkling gouramis and hatchetfish make a good pair. Both are fine at 75–81°F. Plan on at least 20 gal.

What temperature suits both sparkling gouramis and hatchetfish?

75–81 °F. Sparkling gouramis need 72–82 °F, hatchetfish need 75–81 °F.

What size tank do sparkling gouramis and hatchetfish need together?

At least 20 gal, set by the hatchetfish. Add space for each extra fish.