Armatus Corydoras tank mates
Corydoras armatus
6 rated pairings from the Armatus Corydoras care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Armatus Corydoras needs at least 15 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 different tank zones
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eaters that share bottom-dwelling habits without competing for food
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Peaceful schooling fish with identical water requirements and non-aggressive behavior
Anubias Barteri
Anubias barteri
Hardy plant that provides shelter and won't be uprooted by corydoras foraging
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 that occupies mid-bottom zone; may occasionally chase corydoras during breeding
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Peaceful invertebrates sharing bottom habitat; ensure adequate hiding spots for shrimp
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.