Can bichirs live with clown plecos?

Verdict
No

No. Bichirs and clown plecos should not share a tank. An adult bichir eats fish that fit in its mouth, and at 3.5 inches clown plecos do.

BichirBichir72–82°F · pH 6.5–7.5 Clown plecoClown pleco73–82°F · pH 6.5–7.5

What to watch

What works

Water side by side

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

Size to scale

Bichir · 12 inClown pleco · 3.5 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

BichirClown pleco
Temperature72–82 °F73–82 °F
pH6.5–7.56.5–7.5
Adult size12.0 in3.5 in
Minimum tank75 gal20 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomBottom
GroupAlone or in pairsAlone or in pairs
DietCarnivoreHerbivore

Better tank mates for bichirs

All bichir tank mates

Better tank mates for clown plecos

All clown pleco tank mates

Questions

Can bichirs live with clown plecos?

No. Bichirs and clown plecos should not share a tank. An adult bichir eats fish that fit in its mouth, and at 3.5 inches clown plecos do.

What temperature suits both bichirs and clown plecos?

73–82 °F. Bichirs need 72–82 °F, clown plecos need 73–82 °F.

What size tank do bichirs and clown plecos need together?

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