Can yoyo loaches live with congo tetras?

Verdict
Yes

Yes, yoyo loaches and congo tetras can live together. Both are fine at 75–82°F. Plan on at least 40 gal.

Yoyo loachYoyo loach75–86°F · pH 6–7.5 Congo tetraCongo tetra73–82°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Yoyo loach 75–86°Congo tetra 73–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Yoyo loach 6–7.5Congo tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Yoyo loach · 5 inCongo tetra · 3 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 loachCongo tetra
Temperature75–86 °F73–82 °F
pH6–7.56–7.5
Adult size5.0 in3.0 in
Minimum tank40 gal30 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 congo tetras

All congo tetra tank mates

Questions

Can yoyo loaches live with congo tetras?

Yes, yoyo loaches and congo tetras can live together. Both are fine at 75–82°F. Plan on at least 40 gal.

What temperature suits both yoyo loaches and congo tetras?

75–82 °F. Yoyo loaches need 75–86 °F, congo tetras need 73–82 °F.

What size tank do yoyo loaches and congo tetras need together?

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