Rosy Loach tank mates
Petruichthys sp. rosy
6 rated pairings from the Rosy Loach care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Rosy Loach needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
4 · Same water, complementary zones, no conflict.
Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Similar size, peaceful temperament, and preference for warm water make them ideal companions
Chili Rasbora
Boraras brigittae
5 gal min · 0.8" adult · Peaceful
Tiny, non-aggressive, and thrive in the same warm nano tank conditions
Dwarf Hairgrass
Eleocharis parvula
Low-growing plant provides cover and foraging opportunities without blocking movement
Anubias Nana
Anubias barteri var. nana
Hardy plant that creates shelter and won't be uprooted by active loach foraging
Good matches
2 · Compatible with normal care — watch space and numbers.
Amano Shrimp
Caridina multidentata
10 gal min · 2" adult · Peaceful
Peaceful algae grazers that occupy different tank zones and won't compete for food
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Small, peaceful invertebrates that complement loach groups without aggression
Also recommended alongside Rosy Loach
Species whose own guides list Rosy Loach as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.