Doctor fish

Photo: Dances, CC BY-SA 3.0, via Wikimedia Commons

Cyprinidae

Doctor fish

Garra rufa

slightly aggressivesmall group

12 cm

Adult size

300 L

Minimum volume

4

Minimum group

8 years

Lifespan

Water parameters

Understand these values
pH6 – 8
49
Hardness (GH)1 – 15°
0°30°
Temperature14 – 20°C
18°C32°C
Genus
Garra
Diet
omnivore
Social life
small group

In the wild

Overview

The “doctor fish” is used in treatment pools where it nibbles dead skin, with debated effectiveness against psoriasis. It is often unclear whether the fish sold are really G. rufa: the species, as currently understood, probably includes several species.

Scientific name
Garra rufa (Heckel, 1843)
Classification
Cypriniformes › Cyprinidae
IUCN Red List
Least concern (LC)

Natural habitat

Middle East: Jordan, Orontes and Tigris–Euphrates basins, coastal rivers of southern Turkey and northern Syria

Observations (GBIF) and localities Native countries Rivers and lakes

It prefers headwaters and fast tributaries, in clear, oxygen-saturated water where a rich biofilm grows, but also lives in lowland rivers, reservoirs and temporary habitats that partly dry out.

Behaviour

Fairly peaceful, it tolerates its own kind poorly in a small tank; kept alone, it becomes aggressive towards fish of the same shape. A group of three or four settles into a hierarchy without harm. It grazes algae but is not strictly herbivorous: live or frozen prey, sinking food and vegetables. It likes current and fairly cool water.

Sources:FishBase Seriously Fish GBIF · Base map: Natural Earth

Doctor fish · Aquarius