Swordtail Characin tank mates
Corynopoma riisei
6 rated pairings from the Swordtail Characin care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Swordtail Characin needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
5 · Same water, complementary zones, no conflict.Flag Tetra
Hyphessobrycon heterorhabdus
10 gal min · 1.5" adult · Peaceful
Similar size and peaceful temperament; shares comparable water parameters
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Small, peaceful schooling fish that won't compete aggressively for food
Pygmy Corydoras
Corydoras pygmaeus
10 gal min · 1" adult · Peaceful
Bottom dwellers that occupy a different zone and are fully peaceful
Chili Rasbora
Boraras brigittae
5 gal min · 0.8" adult · Peaceful
Tiny, peaceful rasbora with overlapping water parameter requirements
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater that occupies the bottom and does not compete with this species
Good matches
1 · Compatible with normal care — watch space and numbers.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.