Can sparkling gouramis live with swordtails?

Verdict
Yes

Yes, sparkling gouramis and swordtails can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

Sparkling gouramiSparkling gourami72–82°F · pH 6–7.5 SwordtailSwordtail72–79°F · pH 7–8.3

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Sparkling gourami 72–82°Swordtail 72–79°
The green band is the temperature range both can live in.
456789Both: 7–7.5Sparkling gourami 6–7.5Swordtail 7–8.3
The green band is the pH both tolerate.

Size to scale

Sparkling gourami · 1.5 inSwordtail · 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 gouramiSwordtail
Temperature72–82 °F72–79 °F
pH6–7.57–8.3
Adult size1.5 in5.0 in
Minimum tank5 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atTopMiddle
GroupGroups of 4+Groups of 3+
DietOmnivoreOmnivore

Better tank mates for sparkling gouramis

All sparkling gourami tank mates

Better tank mates for swordtails

All swordtail tank mates

Questions

Can sparkling gouramis live with swordtails?

Yes, sparkling gouramis and swordtails can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

What temperature suits both sparkling gouramis and swordtails?

72–79 °F. Sparkling gouramis need 72–82 °F, swordtails need 72–79 °F.

What size tank do sparkling gouramis and swordtails need together?

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