Can platies live with sparkling gouramis?

Verdict
Yes

Yes. Platies and sparkling gouramis make a good pair. Both are fine at 72–80°F. Plan on at least 10 gal.

PlatyPlaty70–80°F · pH 7–8.2 Sparkling gouramiSparkling gourami72–82°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–80°Platy 70–80°Sparkling gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Platy 7–8.2Sparkling gourami 6–7.5
The green band is the pH both tolerate.

Size to scale

Platy · 2.5 inSparkling gourami · 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

PlatySparkling gourami
Temperature70–80 °F72–82 °F
pH7–8.26–7.5
Adult size2.5 in1.5 in
Minimum tank10 gal5 gal
TemperamentPeacefulPeaceful
Swims atMiddleTop
GroupGroups of 3+Groups of 4+
DietOmnivoreOmnivore

Better tank mates for platies

All platy tank mates

Better tank mates for sparkling gouramis

All sparkling gourami tank mates

Questions

Can platies live with sparkling gouramis?

Yes. Platies and sparkling gouramis make a good pair. Both are fine at 72–80°F. Plan on at least 10 gal.

What temperature suits both platies and sparkling gouramis?

72–80 °F. Platies need 70–80 °F, sparkling gouramis need 72–82 °F.

What size tank do platies and sparkling gouramis need together?

At least 10 gal, set by the platy. Add space for each extra fish.