David Sands' Corydoras tank mates
Corydoras davidsandsi
5 rated pairings from the David Sands' Corydoras care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. David Sands' Corydoras needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Small, peaceful fish that occupy different water zones
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Similar peaceful bottom-dweller that shares similar water parameters
Harlequin Rasbora
Trigonostigma heteromorpha
10 gal min · 2" adult · Peaceful
Peaceful schooling fish that won't compete with bottom feeders
Good matches
2 · Compatible with normal care — watch space and numbers.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.