Can apistogramma live with lemon tetras?

Verdict
Yes

Yes, apistogramma and lemon tetras can live together. Both are fine at 75–82°F. Plan on at least 20 gal.

ApistogrammaApistogramma75–84°F · pH 5–7 Lemon tetraLemon tetra72–82°F · pH 5.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Apistogramma 75–84°Lemon tetra 72–82°
The green band is the temperature range both can live in.
456789Both: 5.5–7Apistogramma 5–7Lemon tetra 5.5–7.5
The green band is the pH both tolerate.

Size to scale

Apistogramma · 3 inLemon tetra · 2 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

ApistogrammaLemon tetra
Temperature75–84 °F72–82 °F
pH5–75.5–7.5
Adult size3.0 in2.0 in
Minimum tank20 gal15 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietCarnivoreOmnivore

Better tank mates for apistogramma

All apistogramma tank mates

Better tank mates for lemon tetras

All lemon tetra tank mates

Questions

Can apistogramma live with lemon tetras?

Yes, apistogramma and lemon tetras can live together. Both are fine at 75–82°F. Plan on at least 20 gal.

What temperature suits both apistogramma and lemon tetras?

75–82 °F. Apistogramma need 75–84 °F, lemon tetras need 72–82 °F.

What size tank do apistogramma and lemon tetras need together?

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