Can bristlenose plecos live with paradise fish?

Verdict
Yes

Yes. Bristlenose plecos and paradise fish make a good pair. Both are fine at 73–79°F. Plan on at least 30 gal.

Bristlenose plecoBristlenose pleco73–81°F · pH 6.5–7.5 Paradise fishParadise fish61–79°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 73–79°Bristlenose pleco 73–81°Paradise fish 61–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Bristlenose pleco 6.5–7.5Paradise fish 6–8
The green band is the pH both tolerate.

Size to scale

Bristlenose pleco · 5 inParadise fish · 3.5 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 plecoParadise fish
Temperature73–81 °F61–79 °F
pH6.5–7.56–8
Adult size5.0 in3.5 in
Minimum tank30 gal20 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomTop
GroupAlone or in pairsOne per tank
DietHerbivoreOmnivore

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Better tank mates for paradise fish

All paradise fish tank mates

Questions

Can bristlenose plecos live with paradise fish?

Yes. Bristlenose plecos and paradise fish make a good pair. Both are fine at 73–79°F. Plan on at least 30 gal.

What temperature suits both bristlenose plecos and paradise fish?

73–79 °F. Bristlenose plecos need 73–81 °F, paradise fish need 61–79 °F.

What size tank do bristlenose plecos and paradise fish need together?

At least 30 gal, set by the bristlenose pleco. Add space for each extra fish.