Can ember tetras live with mollies?

Verdict
Yes, with care

Yes, with care. Ember tetras and mollies can share a tank, but watch one thing. Different water: ember tetras want pH 5.5–7, mollies want pH 7.5–8.5.

Ember tetraEmber tetra73–84°F · pH 5.5–7 MollyMolly72–82°F · pH 7.5–8.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–82°Ember tetra 73–84°Molly 72–82°
The green band is the temperature range both can live in.
456789Ember tetra 5.5–7Molly 7.5–8.5
No pH suits both. One would live in the wrong water all the time.

Size to scale

Ember tetra · 0.8 inMolly · 4 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 tetraMolly
Temperature73–84 °F72–82 °F
pH5.5–77.5–8.5
Adult size0.8 in4.0 in
Minimum tank5 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleTop
GroupGroups of 6+Groups of 3+
DietOmnivoreOmnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for mollies

All molly tank mates

Questions

Can ember tetras live with mollies?

Yes, with care. Ember tetras and mollies can share a tank, but watch one thing. Different water: ember tetras want pH 5.5–7, mollies want pH 7.5–8.5.

What temperature suits both ember tetras and mollies?

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

What size tank do ember tetras and mollies need together?

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