Bluefin Killifish tank mates
Lucania goodei
5 rated pairings from the Bluefin Killifish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Bluefin Killifish needs at least 5 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Similar size and peaceful temperament make them ideal companions
Pygmy Corydoras
Corydoras pygmaeus
10 gal min · 1" adult · Peaceful
Bottom dwellers that occupy different zones and have compatible care requirements
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Small, peaceful fish with similar size and temperament
Good matches
2 · 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.