Nijssen's Corydoras tank mates
Corydoras nijsseni
6 rated pairings from the Nijssen's Corydoras care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Nijssen's Corydoras needs at least 15 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Similar water parameter requirements and peaceful temperament; occupy different water zones
Panda Tetra
Aphyocharax paraguayensis
10 gal min · 1.5" adult · Peaceful
Prefer soft, acidic water and peaceful community settings; compatible size and behavior
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Algae-eating bottom dweller with identical water requirements and peaceful nature
Good matches
3 · Compatible with normal care — watch space and numbers.
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Thrive in soft, acidic water; may be preyed upon if corydoras are very hungry, but generally compatible
Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful mid-water dweller that appreciates similar soft, slightly acidic conditions
Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Nocturnal bottom dweller with minimal competition; prefers slightly acidic water
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.