Can bristlenose plecos live with pictus catfish?

Verdict
Yes

Yes, bristlenose plecos and pictus catfish can live together. Both are fine at 73–79°F. Plan on at least 55 gal.

Bristlenose plecoBristlenose pleco73–81°F · pH 6.5–7.5 Pictus catfishPictus catfish72–79°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–79°Bristlenose pleco 73–81°Pictus catfish 72–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Bristlenose pleco 6.5–7.5Pictus catfish 6–7.5
The green band is the pH both tolerate.

Size to scale

Bristlenose pleco · 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

Bristlenose plecoPictus catfish
Temperature73–81 °F72–79 °F
pH6.5–7.56–7.5
Adult size5.0 in5.0 in
Minimum tank30 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomBottom
GroupAlone or in pairsGroups of 3+
DietHerbivoreCarnivore

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Better tank mates for pictus catfish

All pictus catfish tank mates

Questions

Can bristlenose plecos live with pictus catfish?

Yes, bristlenose plecos and pictus catfish can live together. Both are fine at 73–79°F. Plan on at least 55 gal.

What temperature suits both bristlenose plecos and pictus catfish?

73–79 °F. Bristlenose plecos need 73–81 °F, pictus catfish need 72–79 °F.

What size tank do bristlenose plecos and pictus catfish need together?

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