Can pictus catfish live with blue gouramis?

Verdict
Yes

Yes. Pictus catfish and blue gouramis get along in the same tank. Both are fine at 72–79°F. Plan on at least 55 gal.

Pictus catfishPictus catfish72–79°F · pH 6–7.5 Blue gouramiBlue gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Pictus catfish 72–79°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6–7.5Pictus catfish 6–7.5Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Pictus catfish · 5 inBlue gourami · 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

Pictus catfishBlue gourami
Temperature72–79 °F72–82 °F
pH6–7.56–8
Adult size5.0 in5.0 in
Minimum tank55 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atBottomTop
GroupGroups of 3+Alone or in pairs
DietCarnivoreOmnivore

Better tank mates for pictus catfish

All pictus catfish tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can pictus catfish live with blue gouramis?

Yes. Pictus catfish and blue gouramis get along in the same tank. Both are fine at 72–79°F. Plan on at least 55 gal.

What temperature suits both pictus catfish and blue gouramis?

72–79 °F. Pictus catfish need 72–79 °F, blue gouramis need 72–82 °F.

What size tank do pictus catfish and blue gouramis need together?

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