Delphax Corydoras tank mates
Corydoras delphax
6 rated pairings from the Delphax Corydoras care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Delphax Corydoras needs at least 15 gallons on its own; every companion adds to that.
Excellent matches
4 · Same water, complementary zones, no conflict.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Similar size, peaceful temperament, and compatible water parameters; both are bottom feeders that don't compete aggressively
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Small, peaceful mid-water swimmers that won't disturb bottom-dwelling corydoras; thrive in identical soft, acidic water
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Peaceful invertebrates that share bottom habitat; won't prey on adult corydoras and help maintain water quality
Sterbai Corydoras
Corydoras sterbai
20 gal min · 2.5" adult · Peaceful
Closely related species with identical care requirements; can be kept together in mixed corydoras groups of 6+
Good matches
2 · Compatible with normal care — watch space and numbers.
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Peaceful schooling fish preferring soft, acidic water; occupy mid-water column without competing for bottom space
Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful and small enough to coexist safely; prefer similar warm, slightly acidic conditions
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.