Can rummy nose tetras live with tinfoil barbs?

Verdict
Yes, with care

Yes, with care. Rummy nose tetras and tinfoil barbs can share a tank, but watch one thing. At 12 inches a tinfoil barb can swallow a small rummy nose tetra. Fast, alert fish usually stay out of reach.

Rummy nose tetraRummy nose tetra75–84°F · pH 5.5–7 Tinfoil barbTinfoil barb72–80°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Rummy nose tetra 75–84°Tinfoil barb 72–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7Rummy nose tetra 5.5–7Tinfoil barb 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Rummy nose tetra · 2 inTinfoil barb · 12 in0"2"4"6"8"10"12"
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

Rummy nose tetraTinfoil barb
Temperature75–84 °F72–80 °F
pH5.5–76.5–7.5
Adult size2.0 in12.0 in
Minimum tank20 gal125 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 5+
DietOmnivoreOmnivore

Better tank mates for rummy nose tetras

All rummy nose tetra tank mates

Better tank mates for tinfoil barbs

All tinfoil barb tank mates

Questions

Can rummy nose tetras live with tinfoil barbs?

Yes, with care. Rummy nose tetras and tinfoil barbs can share a tank, but watch one thing. At 12 inches a tinfoil barb can swallow a small rummy nose tetra. Fast, alert fish usually stay out of reach.

What temperature suits both rummy nose tetras and tinfoil barbs?

75–80 °F. Rummy nose tetras need 75–84 °F, tinfoil barbs need 72–80 °F.

What size tank do rummy nose tetras and tinfoil barbs need together?

At least 125 gal, set by the tinfoil barb. Add space for each extra fish.