Silver Hatchetfish tank mates
Gasteropelecus sternicla
5 rated pairings from the Silver Hatchetfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Silver Hatchetfish needs at least 20 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, peaceful temperament, and identical water parameter requirements make them ideal companions
Cardinal Tetra
Paracheirodon axelrodi
15 gal min · 2" adult · Peaceful
Slightly larger than Neon Tetras but equally peaceful; thrive in the same soft, acidic conditions
Marbled Hatchetfish
Carnegiella strigata
15 gal min · 1.5" adult · Peaceful
Closely related species with identical habitat needs; can be housed together in the same school
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 with compatible water needs; occupy mid-water zones without competing for surface food
Bolivian Ram
Mikrogeophagus altispinosus
20 gal min · 3.5" adult · Peaceful
Peaceful dwarf cichlid that occupies lower water zones; compatible temperature and pH requirements
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.