London Shubunkin tank mates
Carassius auratus
5 rated pairings from the London Shubunkin care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. London Shubunkin needs at least 40 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.Fancy Goldfish
Carassius auratus (fancy varieties)
30 gal min · 8" adult · Peaceful
Compatible single-tailed goldfish variety with similar care requirements and temperament
Comet Goldfish
Carassius auratus
40 gal min · 12" adult · Peaceful
Another single-tailed variety that shares identical water parameters and activity levels
Common Goldfish
Carassius auratus
50 gal min · 12" adult · Peaceful
Hardy single-tailed goldfish with matching temperature and dietary needs
Good matches
1 · Compatible with normal care — watch space and numbers.
Use caution
1 · Works in the right setup; read the note before combining.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.