Black Neon Tetra tank mates
Hyphessobrycon herbertaxelrodi
5 rated pairings from the Black Neon Tetra care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Black Neon Tetra needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater with identical water parameter requirements; non-competitive for food

Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Similar size, temperament, and water requirements; excellent schooling companion

Anubias Nana
Anubias barteri var. nana
Hardy plant that provides shelter and won't be uprooted by active tetras
Good matches
2 · Compatible with normal care — watch space and numbers.Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful and compatible, though slightly larger; ensure adequate space and plant cover

Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Small shrimp are generally safe with tetras; provide dense plants for shrimp security
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.