Can plecos live with blue gouramis?

Verdict
Yes, with care

Yes, with care. Plecos and blue gouramis can share a tank, but watch one thing. Plecos grow to 15 inches and need 125 gallons, far more than a tank set up for blue gouramis.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–82°Common pleco 72–86°Blue gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Common pleco 6.5–7.5Blue gourami 6–8
The green band is the pH both tolerate.

Size to scale

Common pleco · 15 inBlue gourami · 5 in0"2"4"6"8"10"12"14"
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

Common plecoBlue gourami
Temperature72–86 °F72–82 °F
pH6.5–7.56–8
Adult size15.0 in5.0 in
Minimum tank125 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomTop
GroupAlone or in pairsAlone or in pairs
DietHerbivoreOmnivore

Better tank mates for plecos

All common pleco tank mates

Better tank mates for blue gouramis

All blue gourami tank mates

Questions

Can plecos live with blue gouramis?

Yes, with care. Plecos and blue gouramis can share a tank, but watch one thing. Plecos grow to 15 inches and need 125 gallons, far more than a tank set up for blue gouramis.

What temperature suits both plecos and blue gouramis?

72–82 °F. Plecos need 72–86 °F, blue gouramis need 72–82 °F.

What size tank do plecos and blue gouramis need together?

At least 125 gal, set by the common pleco. Add space for each extra fish.