Neon Rasbora tank mates
Sundadanio axelrodi
6 rated pairings from the Neon Rasbora care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Neon Rasbora needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
4 · Same water, complementary zones, no conflict.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater with identical soft water requirements and non-aggressive temperament
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Similar size, peaceful schooling behavior, and preference for soft acidic water
Dwarf Hairgrass
Eleocharis parvula
Low-growing plant that provides cover and mimics natural blackwater habitat
Java Moss
Taxiphyllum barbieri
Dense moss provides shelter and spawning sites; thrives in soft acidic conditions
Good matches
2 · Compatible with normal care — watch space and numbers.
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Peaceful invertebrate that thrives in soft water; may predate tiny fry but safe with adults
Least Killifish
Heterandria formosa
5 gal min · 1.5" adult · Peaceful
Tiny, peaceful fish with similar nano tank requirements and non-competitive feeding
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.