Can pictus catfish live with tinfoil barbs?

Verdict
Yes

Yes, pictus catfish and tinfoil barbs can live together. Both are fine at 72–79°F. Plan on at least 125 gal.

Pictus catfishPictus catfish72–79°F · pH 6–7.5 Tinfoil barbTinfoil barb72–80°F · pH 6.5–7.5

Why it works

Water side by side

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

Size to scale

Pictus catfish · 5 inTinfoil barb · 12 in0"2"4"6"8"10"12"
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 catfishTinfoil barb
Temperature72–79 °F72–80 °F
pH6–7.56.5–7.5
Adult size5.0 in12.0 in
Minimum tank55 gal125 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomMiddle
GroupGroups of 3+Groups of 5+
DietCarnivoreOmnivore

Better tank mates for pictus catfish

All pictus catfish tank mates

Better tank mates for tinfoil barbs

All tinfoil barb tank mates

Questions

Can pictus catfish live with tinfoil barbs?

Yes, pictus catfish and tinfoil barbs can live together. Both are fine at 72–79°F. Plan on at least 125 gal.

What temperature suits both pictus catfish and tinfoil barbs?

72–79 °F. Pictus catfish need 72–79 °F, tinfoil barbs need 72–80 °F.

What size tank do pictus catfish and tinfoil barbs need together?

At least 125 gal, set by the tinfoil barb. Add space for each extra fish.