Can bristlenose plecos live with severums?

Verdict
Yes

Yes. Bristlenose plecos and severums make a good pair. Both are fine at 74–81°F. Plan on at least 55 gal.

Bristlenose plecoBristlenose pleco73–81°F · pH 6.5–7.5 SeverumSeverum74–84°F · pH 6–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–81°Bristlenose pleco 73–81°Severum 74–84°
The green band is the temperature range both can live in.
456789Both: 6.5–7Bristlenose pleco 6.5–7.5Severum 6–7
The green band is the pH both tolerate.

Size to scale

Bristlenose pleco · 5 inSeverum · 8 in0"1"2"3"4"5"6"7"8"
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 plecoSeverum
Temperature73–81 °F74–84 °F
pH6.5–7.56–7
Adult size5.0 in8.0 in
Minimum tank30 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomMiddle
GroupAlone or in pairsAlone or in pairs
DietHerbivoreOmnivore

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Better tank mates for severums

All severum tank mates

Questions

Can bristlenose plecos live with severums?

Yes. Bristlenose plecos and severums make a good pair. Both are fine at 74–81°F. Plan on at least 55 gal.

What temperature suits both bristlenose plecos and severums?

74–81 °F. Bristlenose plecos need 73–81 °F, severums need 74–84 °F.

What size tank do bristlenose plecos and severums need together?

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