Can angelfish live with rummy nose tetras?

Verdict
Yes

Yes, angelfish and rummy nose tetras can live together. Both are fine at 76–84°F. Plan on at least 30 gal.

AngelfishAngelfish76–84°F · pH 6–7.5 Rummy nose tetraRummy nose tetra75–84°F · pH 5.5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–84°Angelfish 76–84°Rummy nose tetra 75–84°
The green band is the temperature range both can live in.
456789Both: 6–7Angelfish 6–7.5Rummy nose tetra 5.5–7
The green band is the pH both tolerate.

Size to scale

Angelfish · 6 inRummy nose tetra · 2 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

AngelfishRummy nose tetra
Temperature76–84 °F75–84 °F
pH6–7.55.5–7
Adult size6.0 in2.0 in
Minimum tank30 gal20 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for angelfish

All angelfish tank mates

Better tank mates for rummy nose tetras

All rummy nose tetra tank mates

Questions

Can angelfish live with rummy nose tetras?

Yes, angelfish and rummy nose tetras can live together. Both are fine at 76–84°F. Plan on at least 30 gal.

What temperature suits both angelfish and rummy nose tetras?

76–84 °F. Angelfish need 76–84 °F, rummy nose tetras need 75–84 °F.

What size tank do angelfish and rummy nose tetras need together?

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