Ulrey's Tetra tank mates
Hemigrammus ulreyi
6 rated pairings from the Ulrey's Tetra care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Ulrey's Tetra needs at least 15 gallons on its own; every companion adds to that.
Excellent matches
5 · Same water, complementary zones, no conflict.
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Similar size, temperament, and water requirements make them ideal tankmates
Harlequin Rasbora
Trigonostigma heteromorpha
10 gal min · 2" adult · Peaceful
Peaceful schooling fish with overlapping water parameter needs
Pygmy Corydoras
Corydoras pygmaeus
10 gal min · 1" adult · Peaceful
Small, peaceful bottom dweller that won't compete or harass tetras
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Tiny, peaceful tetra with identical water requirements
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater that occupies a different niche and shares soft water preferences
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.