Can rummy nose tetras live with zebra plecos?

Verdict
Yes

Yes. Rummy nose tetras and zebra plecos get along in the same tank. Both are fine at 79–84°F. Plan on at least 30 gal.

Rummy nose tetraRummy nose tetra75–84°F · pH 5.5–7 Zebra plecoZebra pleco79–88°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 79–84°Rummy nose tetra 75–84°Zebra pleco 79–88°
The green band is the temperature range both can live in.
456789Both: 6–7Rummy nose tetra 5.5–7Zebra pleco 6–7.5
The green band is the pH both tolerate.

Size to scale

Rummy nose tetra · 2 inZebra pleco · 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 pleco
Temperature75–84 °F79–88 °F
pH5.5–76–7.5
Adult size2.0 in3.5 in
Minimum tank20 gal30 gal
TemperamentPeacefulPeaceful
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreCarnivore

Better tank mates for rummy nose tetras

All rummy nose tetra tank mates

Better tank mates for zebra plecos

All zebra pleco tank mates

Questions

Can rummy nose tetras live with zebra plecos?

Yes. Rummy nose tetras and zebra plecos get along in the same tank. Both are fine at 79–84°F. Plan on at least 30 gal.

What temperature suits both rummy nose tetras and zebra plecos?

79–84 °F. Rummy nose tetras need 75–84 °F, zebra plecos need 79–88 °F.

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

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