Can bettas live with pictus catfish?

Verdict
No

No. Bettas and pictus catfish should not share a tank. An adult pictus catfish is twice the size of a betta and will hunt or batter a slow, long-finned fish like this.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–79°Betta 76–82°Pictus catfish 72–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Betta 6.5–7.5Pictus catfish 6–7.5
The green band is the pH both tolerate.

Size to scale

Betta · 2.5 inPictus catfish · 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

BettaPictus catfish
Temperature76–82 °F72–79 °F
pH6.5–7.56–7.5
Adult size2.5 in5.0 in
Minimum tank5 gal55 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atTopBottom
GroupOne per tankGroups of 3+
DietCarnivoreCarnivore

Better tank mates for bettas

All betta tank mates

Better tank mates for pictus catfish

All pictus catfish tank mates

Questions

Can bettas live with pictus catfish?

No. Bettas and pictus catfish should not share a tank. An adult pictus catfish is twice the size of a betta and will hunt or batter a slow, long-finned fish like this.

What temperature suits both bettas and pictus catfish?

76–79 °F. Bettas need 76–82 °F, pictus catfish need 72–79 °F.

What size tank do bettas and pictus catfish need together?

At least 55 gal, set by the pictus catfish. Add space for each extra fish.