Pretty Tetra tank mates
Hemigrammus pulcher
6 rated pairings from the Pretty Tetra care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Pretty Tetra needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
5 · Same water, complementary zones, no conflict.
Cardinal Tetra
Paracheirodon axelrodi
15 gal min · 2" adult · Peaceful
Similar size, water requirements, and peaceful temperament; both thrive in soft, acidic Amazonian conditions.
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Classic community companion with identical water parameter needs and peaceful schooling behavior.
Corydoras Duplicareus
Corydoras duplicareus
15 gal min · 2.2" adult · Peaceful
Bottom-dwelling, peaceful catfish that occupies a different zone and shares soft, acidic water preferences.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Gentle algae eater that shares soft, warm water needs and will not compete with or harass tetras.
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Tiny, peaceful tetra that thrives in the same soft, acidic Amazonian biotope conditions.
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.