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Fish Freshwater Care: easy Peaceful

Rose Danio

Danio roseus
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Other names: Danio roseus, Brachydanio roseus
Group: Rasboras and danios · Family: Danionidae · Origin: Southeast Asia — Laos and northern Thailand (Mekong basin)

A fast 4.5 cm danio resembling the pearl danio, but with a body that shimmers with pink-purple reflections. Hardy and adaptable to cool water; it needs long swimming space and a lid.

Will it suit my tank?

Last updated October 16, 2026

Temperature
20–26°C
pH
6.5–7.5
Hardness
5–15 dGH
Adult size
4.5 cm
Minimum tank size
60 liters
Social structure
School
Group
at least 6, ideally 10+
Swimming zone
Top
Diet
Omnivore
Breeding
Egg scatterer

Water parameters

Temperature20–26°C
pH6.5–7.5
General hardness (GH)5–15 dGH
Recommended range
May escape, needs a lid Considered shrimp safe Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

The rose danio is a close relative of the pearl danio and was long confused with it. Its slender, streamlined body has no distinct stripes; as it catches the light it gives off pink and purple reflections over a silvery base. It grows to about 4.5 cm. It comes from the hill streams of northern Indochina, so it likes cool, oxygen-rich water and adapts to a wide range of water values.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 60 liters and 60–70 cm in length for a school of 6–10; long swimming space is important.
  • 20–25°C, pH 6.5–7.5, moderately hard water.
  • Gentle to moderate current, high oxygen.
  • Plants along the sides, open space in the middle; always use a lid.

Diet

October 16, 2026 · Suggest an edit

Omnivorous. It readily accepts flakes and small granules; vary the diet with frozen brine shrimp, daphnia and mosquito larvae.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

Peaceful but very active. As a school it moves through the upper layer; males chase the females and each other. Its speed can bother slow species with flowing fins.

Good companions: other danios, rasboras, barbs, corydoras, kuhli loaches, loaches.

Avoid: slow and shy species, bettas, large predators.

A short profile for this species

The Rose Danio page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026