Can ember tetras live with kribensis?

Verdict
Yes

Yes. Ember tetras and kribensis make a good pair. Both are fine at 75–80°F. Plan on at least 30 gal.

Ember tetraEmber tetra73–84°F · pH 5.5–7 KribensisKribensis75–80°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Ember tetra 73–84°Kribensis 75–80°
The green band is the temperature range both can live in.
456789Both: 6–7Ember tetra 5.5–7Kribensis 6–7.5
The green band is the pH both tolerate.

Size to scale

Ember tetra · 0.8 inKribensis · 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 tetraKribensis
Temperature73–84 °F75–80 °F
pH5.5–76–7.5
Adult size0.8 in4.0 in
Minimum tank5 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreOmnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for kribensis

All kribensis tank mates

Questions

Can ember tetras live with kribensis?

Yes. Ember tetras and kribensis make a good pair. Both are fine at 75–80°F. Plan on at least 30 gal.

What temperature suits both ember tetras and kribensis?

75–80 °F. Ember tetras need 73–84 °F, kribensis need 75–80 °F.

What size tank do ember tetras and kribensis need together?

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