Can bettas live with apistogramma?

Verdict
Yes

Yes. Bettas and apistogramma make a good pair. Both are fine at 76–82°F. Plan on at least 20 gal.

BettaBetta76–82°F · pH 6.5–7.5 ApistogrammaApistogramma75–84°F · pH 5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–82°Betta 76–82°Apistogramma 75–84°
The green band is the temperature range both can live in.
456789Both: 6.5–7Betta 6.5–7.5Apistogramma 5–7
The green band is the pH both tolerate.

Size to scale

Betta · 2.5 inApistogramma · 3 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

BettaApistogramma
Temperature76–82 °F75–84 °F
pH6.5–7.55–7
Adult size2.5 in3.0 in
Minimum tank5 gal20 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atTopBottom
GroupOne per tankAlone or in pairs
DietCarnivoreCarnivore

Better tank mates for bettas

All betta tank mates

Better tank mates for apistogramma

All apistogramma tank mates

Questions

Can bettas live with apistogramma?

Yes. Bettas and apistogramma make a good pair. Both are fine at 76–82°F. Plan on at least 20 gal.

What temperature suits both bettas and apistogramma?

76–82 °F. Bettas need 76–82 °F, apistogramma need 75–84 °F.

What size tank do bettas and apistogramma need together?

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