Emerald Corydoras tank mates
Brochis splendens
6 rated pairings from the Emerald Corydoras care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Emerald Corydoras needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
4 · 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
Cardinal Tetra
Paracheirodon axelrodi
15 gal min · 2" adult · Peaceful
Identical habitat requirements and non-competitive feeding behavior
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Complementary bottom feeders with identical water requirements; minimal competition
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Matching water parameters and peaceful schooling behavior; ideal community fish
Good matches
2 · Compatible with normal care — watch space and numbers.Bolivian Ram
Mikrogeophagus altispinosus
20 gal min · 3.5" adult · Peaceful
Peaceful dwarf cichlid; may occasionally compete for bottom space but generally compatible
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Peaceful invertebrates; emerald corydoras may occasionally consume shrimplets
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.