Elegant Corydoras tank mates
Corydoras elegans
6 rated pairings from the Elegant Corydoras care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Elegant Corydoras needs at least 15 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
Similar water parameters and peaceful temperament; occupy mid-water column without competing for bottom space

Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater with identical water requirements; both are bottom dwellers but occupy different ecological niches

Harlequin Rasbora
Trigonostigma heteromorpha
10 gal min · 2" adult · Peaceful
Peaceful schooling fish with matching water parameters; mid-water dweller that doesn't compete with corydoras
Good matches
3 · Compatible with normal care — watch space and numbers.Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful and compatible with corydoras; prefers slightly warmer water but within acceptable range

Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Peaceful invertebrate that shares substrate habitat; may occasionally be nipped but generally compatible
Bolivian Ram
Mikrogeophagus altispinosus
20 gal min · 3.5" adult · Peaceful
Peaceful dwarf cichlid with compatible temperature range; may occasionally dig but generally non-aggressive toward corydoras
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.