Can ember tetras live with paradise fish?

Verdict
Yes

Yes. Ember tetras and paradise fish get along in the same tank. Both are fine at 73–79°F. Plan on at least 20 gal.

Ember tetraEmber tetra73–84°F · pH 5.5–7 Paradise fishParadise fish61–79°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–79°Ember tetra 73–84°Paradise fish 61–79°
The green band is the temperature range both can live in.
456789Both: 6–7Ember tetra 5.5–7Paradise fish 6–8
The green band is the pH both tolerate.

Size to scale

Ember tetra · 0.8 inParadise fish · 3.5 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 tetraParadise fish
Temperature73–84 °F61–79 °F
pH5.5–76–8
Adult size0.8 in3.5 in
Minimum tank5 gal20 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleTop
GroupGroups of 6+One per tank
DietOmnivoreOmnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for paradise fish

All paradise fish tank mates

Questions

Can ember tetras live with paradise fish?

Yes. Ember tetras and paradise fish get along in the same tank. Both are fine at 73–79°F. Plan on at least 20 gal.

What temperature suits both ember tetras and paradise fish?

73–79 °F. Ember tetras need 73–84 °F, paradise fish need 61–79 °F.

What size tank do ember tetras and paradise fish need together?

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