What fish can live with Rosy Barb?

Usually safer companions on this hub include Boesemani Rainbowfish. Open each pair check before you buy — the list is a shortlist, not a guarantee.

What tank mates should you avoid with Rosy Barb?

Avoid any species that competes for the same territory, eats juveniles of this species' size class, or requires very different water parameters.

What size tank do Rosy Barb need for a community?

180L is the planning floor for adult swimming space and bioload. A 220L+ tank is the more comfortable long-term footprint. Length and depth matter as much as raw litres for active or territorial fish.

Rosy Barb tank mates

Rosy barbs are conditional tank mates: robust, fast, cool-leaning fish do well next to them, while long-finned or slow fish take nips when the barbs are under-grouped. That is why this page has a short 'safer' list and a long conditional one — the conditions are the real answer.

Common mistakeParking a rosy barb pair in a 60L community is how keepers invent constant high-speed stress for every smaller fish. They need swim length and a real school of six or more in roughly 180L+. A 'pair for colour' in a starter kit is the wrong footprint.

Evidence: partially verified

Confidence: high

Each name below opens a pair check with Rosy Barb. That check is the decision, not the list itself.

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

Usually safer companions

Conservative shortlist from this profile. Open a pair page before you buy.

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.

Risky or situational

May work with more water, a mature system, or a species-only setup. Read the pair page before you experiment.

Betta Open pair check
Betta is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Rosy Barb. Run the pair checker before stocking.
Chili Rasbora Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Corydoras Catfish Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Dwarf Gourami Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Neon Tetra Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Tiger Barb Open pair check
Tiger Barb is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Rosy Barb. Run the pair checker before stocking.

Fish to avoid with Rosy Barb

Predation, aggression, or space rules on this profile. Treat these as poor default mixes.

None flagged as a hard avoid on this profile.

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

Hardier first-tank names from the library. Still read the profile. Not a substitute for reading this one.

Plan before you buy

Start a pair check with Rosy Barb, or open a starter plan with the top safer companions in the builder.

Open pair checker Open this plan in builder

Tank hubs: 200L

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 size guide →Heater size guide →Tank setup checklist →Beginner plants guide →

Related (care + temperament)