Can Bristlenose Pleco and Common Goldfish live together?

Bristlenose Pleco and Common Goldfish are not compatible. The comparison on this page runs the same compatibility engine as the tank builder, checking temperature and pH overlap, predation by size, temperament, and known hard-pair conflicts.

Species Comparison

Bristlenose Pleco vs Common Goldfish

Verdict:Not compatible

Side-by-side specs

Plecos

Family

Goldfish

5″

Adult size

14″

30gal

Min tank

75gal

73–81°F

Temperature

60–72°F

6.5–7.5

6.5–8

peaceful

Temperament

peaceful

Solitary

Schooling

Solitary

bottom

Water level

All

Compatibility notes

criticalBristlenose Pleco (73–81°F) and Common Goldfish (60–72°F) need different temperatures.
criticalCommon Goldfish produces heavy waste and needs cool water — Bristlenose Pleco won't tolerate sharing a tank.

Try both in the builder →Compare different species