Can yoyo loaches live with rosy barbs?

Verdict
Yes

Yes. Yoyo loaches and rosy barbs make a good pair. Both are fine at 75–77°F. Plan on at least 40 gal.

Yoyo loachYoyo loach75–86°F · pH 6–7.5 Rosy barbRosy barb64–77°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–77°Yoyo loach 75–86°Rosy barb 64–77°
The green band is the temperature range both can live in.
456789Both: 6–7.5Yoyo loach 6–7.5Rosy barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Yoyo loach · 5 inRosy barb · 4 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 loachRosy barb
Temperature75–86 °F64–77 °F
pH6–7.56–7.5
Adult size5.0 in4.0 in
Minimum tank40 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atBottomMiddle
GroupGroups of 5+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for yoyo loaches

All yoyo loach tank mates

Better tank mates for rosy barbs

All rosy barb tank mates

Questions

Can yoyo loaches live with rosy barbs?

Yes. Yoyo loaches and rosy barbs make a good pair. Both are fine at 75–77°F. Plan on at least 40 gal.

What temperature suits both yoyo loaches and rosy barbs?

75–77 °F. Yoyo loaches need 75–86 °F, rosy barbs need 64–77 °F.

What size tank do yoyo loaches and rosy barbs need together?

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