Leucomelas Corydoras tank mates
Corydoras leucomelas
6 rated pairings from the Leucomelas Corydoras care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Leucomelas Corydoras needs at least 15 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Similar peaceful bottom-dweller with identical water parameter needs and non-aggressive behavior

Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Small, peaceful mid-water swimmer that won't compete for bottom space or food

Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Gentle schooling fish with compatible water requirements and peaceful temperament
Good matches
3 · Compatible with normal care — watch space and numbers.
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Peaceful invertebrate that shares bottom habitat; ensure adequate hiding spots for shrimp
Bolivian Ram
Mikrogeophagus altispinosus
20 gal min · 3.5" adult · Peaceful
Peaceful dwarf cichlid with similar water parameters; may occasionally chase corydoras but generally compatible

Amano Shrimp
Caridina multidentata
10 gal min · 2" adult · Peaceful
Larger shrimp less likely to be eaten; shares detritus-feeding role without direct competition
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.