Can ember tetras live with apistogramma?

Verdict
Yes

Yes, ember tetras and apistogramma can live together. Both are fine at 75–84°F. Plan on at least 20 gal.

Ember tetraEmber tetra73–84°F · pH 5.5–7 ApistogrammaApistogramma75–84°F · pH 5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–84°Ember tetra 73–84°Apistogramma 75–84°
The green band is the temperature range both can live in.
456789Both: 5.5–7Ember tetra 5.5–7Apistogramma 5–7
The green band is the pH both tolerate.

Size to scale

Ember tetra · 0.8 inApistogramma · 3 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 tetraApistogramma
Temperature73–84 °F75–84 °F
pH5.5–75–7
Adult size0.8 in3.0 in
Minimum tank5 gal20 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for apistogramma

All apistogramma tank mates

Questions

Can ember tetras live with apistogramma?

Yes, ember tetras and apistogramma can live together. Both are fine at 75–84°F. Plan on at least 20 gal.

What temperature suits both ember tetras and apistogramma?

75–84 °F. Ember tetras need 73–84 °F, apistogramma need 75–84 °F.

What size tank do ember tetras and apistogramma need together?

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