Can plecos live with lemon tetras?

Verdict

Yes, with care

Yes, with care. Plecos and lemon tetras can share a tank, but watch one thing. Plecos grow to 15 inches and need 125 gallons, far more than a tank set up for lemon tetras.

Common pleco72–86°F · pH 6.5–7.5

Lemon tetra72–82°F · pH 5.5–7.5

What to watch

Watch outPlecos grow to 15 inches and need 125 gallons, far more than a tank set up for lemon tetras.

What works

Both are fine at 72–82°F.
pH 6.5–7.5 suits both.
They use different parts of the tank: plecos the bottom, lemon tetras the mid.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

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

	Common pleco	Lemon tetra
Temperature	72–86 °F	72–82 °F
pH	6.5–7.5	5.5–7.5
Adult size	15.0 in	2.0 in
Minimum tank	125 gal	15 gal
Temperament	Peaceful	Peaceful
Swims at	Bottom	Middle
Group	Alone or in pairs	Groups of 6+
Diet	Herbivore	Omnivore

Better tank mates for plecos

All common pleco tank mates

Better tank mates for lemon tetras

All lemon tetra tank mates

Questions

Can plecos live with lemon tetras?

Yes, with care. Plecos and lemon tetras can share a tank, but watch one thing. Plecos grow to 15 inches and need 125 gallons, far more than a tank set up for lemon tetras.

What temperature suits both plecos and lemon tetras?

72–82 °F. Plecos need 72–86 °F, lemon tetras need 72–82 °F.

What size tank do plecos and lemon tetras need together?

At least 125 gal, set by the common pleco. Add space for each extra fish.