Can apistogramma live with paradise fish?

Verdict
Yes

Yes. Apistogramma and paradise fish get along in the same tank. Both are fine at 75–79°F. Plan on at least 20 gal.

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Apistogramma 75–84°Paradise fish 61–79°
The green band is the temperature range both can live in.
456789Both: 6–7Apistogramma 5–7Paradise fish 6–8
The green band is the pH both tolerate.

Size to scale

Apistogramma · 3 inParadise fish · 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

ApistogrammaParadise fish
Temperature75–84 °F61–79 °F
pH5–76–8
Adult size3.0 in3.5 in
Minimum tank20 gal20 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atBottomTop
GroupAlone or in pairsOne per tank
DietCarnivoreOmnivore

Better tank mates for apistogramma

All apistogramma tank mates

Better tank mates for paradise fish

All paradise fish tank mates

Questions

Can apistogramma live with paradise fish?

Yes. Apistogramma and paradise fish get along in the same tank. Both are fine at 75–79°F. Plan on at least 20 gal.

What temperature suits both apistogramma and paradise fish?

75–79 °F. Apistogramma need 75–84 °F, paradise fish need 61–79 °F.

What size tank do apistogramma and paradise fish need together?

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