What fish can live with Rosy Barb?

Use the "Often compatible" lists as a shortlist, not a stocking plan. Always run the pair tool and check the footprint of your actual tank first. Verify behaviour for Rosy Barb against your own reading before you buy.

What tank mates should you avoid with Rosy Barb?

Avoid Betta, Chili Rasbora, Neon Tetra based on size, temperament, or predation risk on file.

What size tank do Rosy Barb need for a community?

180L is the planning floor for adult swimming space and bioload headroom. Long-term, a 220L+ tank lets adults use the full footprint without crowding the next species. Footprint, meaning length and front-to-back depth, matters as much as raw volume for active or territorial species.

Rosy Barb tank mates

A large barb at 15 cm that needs a school in a long tank. Peaceful for its size but active enough to stress slower or smaller community fish.

Evidence: partially verified

Confidence: high

Lists below are built from this species record (safest, best with, risky, unsafe) — each link opens a pair-level check, not a guarantee.

← Full Rosy Barb profile·Compatibility checker·Tank builder·More barb

Best tank mates (on file)

Merged from conservative safest and best with fields — de-duplicated by species.

Boesemani Rainbowfish Pair check
The Rosy Barb profile lists Boesemani Rainbowfish as both safe and a recommended pairing. Boesemani Rainbowfish schools in groups of 6 or more, so plan room for the whole group rather than one fish.
Corydoras Catfish Pair check
The Rosy Barb profile lists Corydoras Catfish as both safe and a recommended pairing. Corydoras Catfish schools in groups of 6 or more, so plan room for the whole group rather than one fish. Corydoras Catfish swims in the bottom zone while Rosy Barb stays in the middle, so the two will not crowd the same water column.
Dwarf Gourami Pair check
The Rosy Barb profile lists Dwarf Gourami as both safe and a recommended pairing. Dwarf Gourami is a peaceful beginner-care species with a 60L minimum. Run the pair checker for your specific tank before stocking.
Tiger Barb Pair check
The Rosy Barb profile lists Tiger Barb as both safe and a recommended pairing. Tiger Barb schools in groups of 8 or more, so plan room for the whole group rather than one fish.

Risky or situational

From risky tank mates and broad avoid with (excluding “unsafe” below). May work with species-only setups, more water, or mature systems — read the pair page.

None on file beyond the safe list.

Fish to avoid with Rosy Barb

From the unsafe list — predation, aggression, or space rules on this profile.

Betta See why (pair)
Betta conflicts with Rosy Barb on temperament, predation, or footprint. The juvenile size in a shop tank is not the figure that matters here.
Chili Rasbora See why (pair)
Chili Rasbora conflicts with Rosy Barb on temperament, predation, or footprint. The juvenile size in a shop tank is not the figure that matters here.
Neon Tetra See why (pair)
Neon Tetra conflicts with Rosy Barb on temperament, predation, or footprint. The juvenile size in a shop tank is not the figure that matters here.

Tank size and groups

Published minimum for Rosy Barb: 180L — group minimum 6 (schooling).
Compatibility changes when the tank is too short for turning, too little for a real school, or too warm for one species and not the other — that is why pair checks include tank context, not only temperament.
Nearest litre hub to this minimum: 200L hub.

Easier alternatives to consider

Conservative beginner-peaceful picks from the library — not replacements for reading, but a shorter on-ramp than this species for a first tank.

Plan before you buy

Pair checks for every mix, then multi-species stocking in the builder.

Open compatibility checker Tank builder

Filtration & heating

A 180L minimum tank for Rosy Barb needs a filter rated for at least 720L/hr turnover and a heater maintaining 18–28°C.

Filter buying guide →Heater buying guide →Beginner plants guide →