Can lemon tetras live with clown plecos?

Verdict
Yes

Yes. Lemon tetras and clown plecos get along in the same tank. Both are fine at 73–82°F. Plan on at least 20 gal.

Lemon tetraLemon tetra72–82°F · pH 5.5–7.5 Clown plecoClown pleco73–82°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–82°Lemon tetra 72–82°Clown pleco 73–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Lemon tetra 5.5–7.5Clown pleco 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Lemon tetra · 2 inClown pleco · 3.5 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

Lemon tetraClown pleco
Temperature72–82 °F73–82 °F
pH5.5–7.56.5–7.5
Adult size2.0 in3.5 in
Minimum tank15 gal20 gal
TemperamentPeacefulPeaceful
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietOmnivoreHerbivore

Better tank mates for lemon tetras

All lemon tetra tank mates

Better tank mates for clown plecos

All clown pleco tank mates

Questions

Can lemon tetras live with clown plecos?

Yes. Lemon tetras and clown plecos get along in the same tank. Both are fine at 73–82°F. Plan on at least 20 gal.

What temperature suits both lemon tetras and clown plecos?

73–82 °F. Lemon tetras need 72–82 °F, clown plecos need 73–82 °F.

What size tank do lemon tetras and clown plecos need together?

At least 20 gal, set by the clown pleco. Add space for each extra fish.