Can bolivian rams live with congo tetras?

Verdict
Yes

Yes. Bolivian rams and congo tetras get along in the same tank. Both are fine at 73–79°F. Plan on at least 30 gal.

Bolivian ramBolivian ram72–79°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: 73–79°Bolivian ram 72–79°Congo tetra 73–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Bolivian ram 6–7.5Congo tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Bolivian ram · 3 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

Bolivian ramCongo tetra
Temperature72–79 °F73–82 °F
pH6–7.56–7.5
Adult size3.0 in3.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulPeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for bolivian rams

All bolivian ram tank mates

Better tank mates for congo tetras

All congo tetra tank mates

Questions

Can bolivian rams live with congo tetras?

Yes. Bolivian rams and congo tetras get along in the same tank. Both are fine at 73–79°F. Plan on at least 30 gal.

What temperature suits both bolivian rams and congo tetras?

73–79 °F. Bolivian rams need 72–79 °F, congo tetras need 73–82 °F.

What size tank do bolivian rams and congo tetras need together?

At least 30 gal, set by the congo tetra. Add space for each extra fish.