Can rummy nose tetras live with zebra loaches?

Verdict
Yes

Yes. Rummy nose tetras and zebra loaches make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

Rummy nose tetraRummy nose tetra75–84°F · pH 5.5–7 Zebra loachZebra loach73–79°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Rummy nose tetra 75–84°Zebra loach 73–79°
The green band is the temperature range both can live in.
456789Both: 6–7Rummy nose tetra 5.5–7Zebra loach 6–7.5
The green band is the pH both tolerate.

Size to scale

Rummy nose tetra · 2 inZebra loach · 3.5 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

Rummy nose tetraZebra loach
Temperature75–84 °F73–79 °F
pH5.5–76–7.5
Adult size2.0 in3.5 in
Minimum tank20 gal30 gal
TemperamentPeacefulPeaceful
Swims atMiddleBottom
GroupGroups of 6+Groups of 5+
DietOmnivoreOmnivore

Better tank mates for rummy nose tetras

All rummy nose tetra tank mates

Better tank mates for zebra loaches

All zebra loach tank mates

Questions

Can rummy nose tetras live with zebra loaches?

Yes. Rummy nose tetras and zebra loaches make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both rummy nose tetras and zebra loaches?

75–79 °F. Rummy nose tetras need 75–84 °F, zebra loaches need 73–79 °F.

What size tank do rummy nose tetras and zebra loaches need together?

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