Rosy barb
The rosy barb is a hardy freshwater cyprinid (family Cyprinidae) native to South Asia, notably the rivers of northern India and Bangladesh. Breeding males flush a rich rosy-red, especially on the flanks, while females and non-breeding fish are more silvery-gold, and long-finned and color-selected varieties are common. It is a peaceful, very active shoaling fish that should be kept in a group of six or more; small groups can encourage fin-nipping. In a proper shoal males color up strongly and display to one another. A spacious tank with open swimming areas, plants around the edges, and some current suits its energetic nature. As a subtropical species it tolerates cooler water than many tropicals. It is an omnivore that eats flake, pellets, vegetables, and frozen foods. It is easy to breed, being an egg-scattering species, and is well suited to beginners.
Water parameters
| Temperature | 18 – 24 °C |
|---|---|
| pH | 6 – 7.8 |
| Carbonate hardness (KH) | 2 – 12 °dKH |
| General hardness (GH) | 5 – 19 °dGH |
Tank & stocking
| Minimum tank volume | 100 L |
|---|---|
| Volume budget per individual | 15 L — adds up with tank-mates |
| Minimum group size | 6 individuals (shoaling) |
“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.
Frequently asked questions
What size aquarium does Rosy barb need?
Provide at least 100 litres for a small group to keep Rosy barb in good conditions.
What water parameters does Rosy barb need?
A temperature of 18–24 °C, pH 6–7.8.
Is Rosy barb peaceful or aggressive?
Its temperament is peaceful.
What does Rosy barb eat?
Its diet: omnivore.
How many Rosy barb should be kept together?
It is a social species: keep a group of at least 6.
How big does Rosy barb get?
Around 14 cm as an adult.
Is Rosy barb suitable for beginners?
Care level: beginner.
Planning a tank with Rosy barb?
AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.
Fish from the same biotope
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