Uaru tank mates
Uaru amphiacanthoides
4 rated pairings from the Uaru care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Uaru needs at least 75 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Cardinal Tetra
Paracheirodon axelrodi
15 gal min · 2" adult · Peaceful
Small, peaceful schooling fish that thrive in soft, acidic water matching Uaru requirements
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eaters that share identical water chemistry needs and won't compete with herbivorous Uaru
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Schooling fish requiring soft, acidic water; peaceful and won't harass Uaru
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.