Rhodeus notatus

Family: Cyprinidae

Rhodeus notatus — a Cyprinidae from Korean Peninsula, gentle community fish that dislikes fin-nippers. Reaches 3.7–5.4 cm; shoaling; keep at least 8 together. 18–25 °C.

Care parameters

Water temperature
18–25 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
3.7–5.4 cm
Minimum tank
35 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Gentle community fish that dislikes fin-nippers
Origin
Korean Peninsula

Species overview

Rhodeus notatus is a Cyprinidae from Korean Peninsula. In the wild it prefers clear streams and rivers over gravel; in the aquarium it stays gentle community fish that dislikes fin-nippers. Plan on 3.7–5.4 cm of adult fish at 18–25 °C. Related profiles: Rhodeus fangi, Rhodeus lighti, Rhodeus ocellatus.

Native biotope

Habitat
Clear streams and rivers over gravel
Flow
Moderate, well-oxygenated current
Dissolved O₂
Appreciates well-oxygenated water

Aquascape & hardware

Substrate
Fine gravel and sand
Hardscape
Water-worn stones and driftwood
Plants
Hardy rooted plants along the margins

Temperament, diet & tankmates

Schooling
Shoaling; keep at least 8 together
Diet
Unfussy omnivore; quality flakes plus blanched greens
Recommended tankmates
  • Other small peaceful cyprinids — Similar size, similar water
Avoid keeping with
  • Fin-nippers — Their flowing fins invite damage

Breeding & notes

Sexual dimorphism
Males often slimmer and more colourful
Breeding method
Mussel-brooding egg-scatterer; the male guards the mussel territory

Frequently asked questions

Is Rhodeus notatus easy to keep?

Intermediate difficulty. Gentle community fish that dislikes fin-nippers; shoaling; keep at least 8 together.

What temperature and water chemistry does Rhodeus notatus need?

Set the heater to 18–25 °C and avoid swings. pH 6.5–7.5, GH 5–15 dGH suit it.

How big does Rhodeus notatus get, and what tank size?

Expect 3.7–5.4 cm as an adult, living bottom-dwelling. A 35 L tank or larger gives it room.

What does Rhodeus notatus eat?

Unfussy omnivore; quality flakes plus blanched greens. It forages naturally over fine gravel and sand, so let some food reach the bottom.

Can Rhodeus notatus live with other fish?

Yes, with care. Gentle community fish that dislikes fin-nippers — pair it with Other small peaceful cyprinids — Similar size, similar water and skip Fin-nippers — Their flowing fins invite damage.

Where does Rhodeus notatus come from?

Native to Korean Peninsula, where it lives in clear streams and rivers over gravel. Moderate, well-oxygenated current; Appreciates well-oxygenated water.

Does Rhodeus notatus jump?

Low escape risk, but a lid is cheap insurance.

How does Rhodeus notatus breed?

Mussel-brooding egg-scatterer; the male guards the mussel territory. Males often slimmer and more colourful.