Can bichirs live with congo tetras?

Verdict
No

No. Bichirs and congo tetras should not share a tank. An adult bichir eats fish that fit in its mouth, and at 3 inches congo tetras do.

BichirBichir72–82°F · pH 6.5–7.5 Congo tetraCongo tetra73–82°F · pH 6–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–82°Bichir 72–82°Congo tetra 73–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Bichir 6.5–7.5Congo tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Bichir · 12 inCongo tetra · 3 in0"2"4"6"8"10"12"
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

BichirCongo tetra
Temperature72–82 °F73–82 °F
pH6.5–7.56–7.5
Adult size12.0 in3.0 in
Minimum tank75 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietCarnivoreOmnivore

Better tank mates for bichirs

All bichir tank mates

Better tank mates for congo tetras

All congo tetra tank mates

Questions

Can bichirs live with congo tetras?

No. Bichirs and congo tetras should not share a tank. An adult bichir eats fish that fit in its mouth, and at 3 inches congo tetras do.

What temperature suits both bichirs and congo tetras?

73–82 °F. Bichirs need 72–82 °F, congo tetras need 73–82 °F.

What size tank do bichirs and congo tetras need together?

At least 75 gal, set by the bichir. Add space for each extra fish.