Can ember tetras live with blue gouramis?

Verdict
Yes, with care

Yes, with care. Ember tetras and blue gouramis can share a tank, but watch one thing. At 5 inches a blue gourami can swallow a small ember tetra. Fast, alert fish usually stay out of reach.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–82°Ember tetra 73–84°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7Ember tetra 5.5–7Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Ember tetra · 0.8 inBlue gourami · 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

Ember tetraBlue gourami
Temperature73–84 °F72–82 °F
pH5.5–76–8
Adult size0.8 in5.0 in
Minimum tank5 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleTop
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can ember tetras live with blue gouramis?

Yes, with care. Ember tetras and blue gouramis can share a tank, but watch one thing. At 5 inches a blue gourami can swallow a small ember tetra. Fast, alert fish usually stay out of reach.

What temperature suits both ember tetras and blue gouramis?

73–82 °F. Ember tetras need 73–84 °F, blue gouramis need 72–82 °F.

What size tank do ember tetras and blue gouramis need together?

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