Can discus live with pictus catfish?

Verdict
No

No. Discus and pictus catfish should not share a tank. No shared temperature. Discus need 82–88°F, pictus catfish need 72–79°F.

DiscusDiscus82–88°F · pH 5.5–7 Pictus catfishPictus catfish72–79°F · pH 6–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Discus 82–88°Pictus catfish 72–79°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 6–7Discus 5.5–7Pictus catfish 6–7.5
The green band is the pH both tolerate.

Size to scale

Discus · 6 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

DiscusPictus catfish
Temperature82–88 °F72–79 °F
pH5.5–76–7.5
Adult size6.0 in5.0 in
Minimum tank55 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleBottom
GroupGroups of 5+Groups of 3+
DietCarnivoreCarnivore

Better tank mates for discus

All discus tank mates

Better tank mates for pictus catfish

All pictus catfish tank mates

Questions

Can discus live with pictus catfish?

No. Discus and pictus catfish should not share a tank. No shared temperature. Discus need 82–88°F, pictus catfish need 72–79°F.

What temperature suits both discus and pictus catfish?

None. Discus need 82–88 °F and pictus catfish need 72–79 °F, so the ranges do not meet.

What size tank do discus and pictus catfish need together?

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