Rectoris mutabilis

Family: Cyprinidae

Rectoris mutabilis — a Cyprinidae freshwater fish. Reaches 11.6–17.1 cm; keep at 18–26 °C.

Care parameters

Water temperature
18–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
11.6–17.1 cm
Minimum tank
351 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Mostly peaceful; some species nip fins

Species overview

A Cyprinidae species: Rectoris mutabilis lives bottom-dwelling over gravel. Mostly peaceful; some species nip fins. Adults reach 11.6–17.1 cm. It is one of the aquarium-kept Rectoris species we profile, alongside Rectoris posehensis, Rectoris luxiensis.

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 in groups of 6 or more
Diet
Omnivore; prepared foods with regular vegetable matter
Recommended tankmates
  • Similar-sized peaceful community fish — Similar size and water needs
Avoid keeping with
  • Much smaller fish — May outcompete or bully tiny tankmates

Breeding & notes

Sexual dimorphism
Males often slimmer and more colourful
Breeding method
Egg-scatterer; no parental care

Frequently asked questions

Is Rectoris mutabilis easy to keep?

Intermediate difficulty. Mostly peaceful; some species nip fins; shoaling; keep in groups of 6 or more.

What temperature and water chemistry does Rectoris mutabilis need?

Set the heater to 18–26 °C and avoid swings. pH 6.5–7.5, GH 5–15 dGH suit it.

How big does Rectoris mutabilis get, and what tank size?

Full size is 11.6–17.1 cm. Minimum tank: 351 L, with open swimming space along its bottom-dwelling habits.

What does Rectoris mutabilis eat?

Omnivore; prepared foods with regular vegetable matter. Feed two small meals a day rather than one large one.

Can Rectoris mutabilis live with other fish?

Mostly peaceful; some species nip fins; shoaling; keep in groups of 6 or more. Good company: Similar-sized peaceful community fish — Similar size and water needs. Keep away from Much smaller fish — May outcompete or bully tiny tankmates.

Where does Rectoris mutabilis come from?

It lives in clear streams and rivers over gravel. Moderate, well-oxygenated current; Appreciates well-oxygenated water.

Does Rectoris mutabilis jump?

Not a noted jumper — a standard cover still keeps dust and spray in.

How does Rectoris mutabilis breed?

Egg-scatterer; no parental care. Males often slimmer and more colourful.