Can yoyo loaches live with rummy nose tetras?

Verdict
Yes

Yes. Yoyo loaches and rummy nose tetras get along in the same tank. Both are fine at 75–84°F. Plan on at least 40 gal.

Yoyo loachYoyo loach75–86°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: 75–84°Yoyo loach 75–86°Rummy nose tetra 75–84°
The green band is the temperature range both can live in.
456789Both: 6–7Yoyo loach 6–7.5Rummy nose tetra 5.5–7
The green band is the pH both tolerate.

Size to scale

Yoyo loach · 5 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

Yoyo loachRummy nose tetra
Temperature75–86 °F75–84 °F
pH6–7.55.5–7
Adult size5.0 in2.0 in
Minimum tank40 gal20 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomMiddle
GroupGroups of 5+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for yoyo loaches

All yoyo loach tank mates

Better tank mates for rummy nose tetras

All rummy nose tetra tank mates

Questions

Can yoyo loaches live with rummy nose tetras?

Yes. Yoyo loaches and rummy nose tetras get along in the same tank. Both are fine at 75–84°F. Plan on at least 40 gal.

What temperature suits both yoyo loaches and rummy nose tetras?

75–84 °F. Yoyo loaches need 75–86 °F, rummy nose tetras need 75–84 °F.

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

At least 40 gal, set by the yoyo loach. Add space for each extra fish.