Scientific Name
Nothobranchius guentheri

Common Name
Redtail notho

Biology
Found in seasonal pools and streams (Ref. 3788). Used for biological control of mosquitoes. Quite popular with aquarists. One of the so called 'annual fishes' which has eggs that can withstand seasonal droughts (Ref. 1739). Bottom spawner, 3-4 months incubation. Difficult to maintain in an aquarium (Ref. 27139).

Classification

Classified By

Pfeffer, 1893

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

African rivulines (Nothobranchiidae)

Distribution

Region

Africa

Distribution

Africa: endemic to the island of Zanzibar, eastern Tanzania.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 6.0 - 7.0; dH range: 4 - 10 benthopelagic; non-migratory

Trophic Level

3.21 s.e. 0.42 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

5.5 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest; aquarium: commercial

Vulnerability

Low vulnerability (10 of 100)

Resilience

High, minimum population doubling time less than 15 months (tm= 0.12-0.15; tmax

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)