Leopold's Angelfish tank mates
Pterophyllum leopoldi
4 rated pairings from the Leopold's Angelfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Leopold's Angelfish needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater compatible with soft, acidic water; won't compete with angelfish
Cardinal Tetra
Paracheirodon axelrodi
15 gal min · 2" adult · Peaceful
Thrives in identical soft, acidic Amazon conditions; small size prevents predation concerns
Good matches
1 · Compatible with normal care — watch space and numbers.
Use caution
1 · Works in the right setup; read the note before combining.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.