Pseudotropheus johannii
Species of fish
From Wikipedia, the free encyclopedia
Pseudotropheus johannii or the bluegray mbuna is an African freshwater fish from the family Cichlidae.[2][3]
| Pseudotropheus johannii | |
|---|---|
| |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cichliformes |
| Family: | Cichlidae |
| Genus: | Pseudotropheus |
| Species: | P. johannii |
| Binomial name | |
| Pseudotropheus johannii Eccles, 1973 | |
| Synonyms | |
|
Melanochromis johannii (Eccles, 1973) | |
Distribution and habitat
The species is endemic to littoral zones on the east, Mozambique coastline of Lake Malawi, south of Chuanga.[3][4] The species is popular in the fishkeeping hobby and is frequently kept in cichlid aquariums.[5][6] In the aquarium trade, the fish is known as the bluegray mbuna or the electric blue johanni.[3][6]
Description
The species is highly sexually dimorphic. Females and juveniles are yellow. The coloration of males is a combination of blue to purple and black, with one blue line running across the forehead, over the top of the eye and along the body above the mid-line, a second line appears below the mid-line.[7]
Name
In the aquarium
This fish is an mbuna cichlid that lives in alkaline water with the PH of 7 to 9. It is a tropical fish and lives in temperatures from 22 to 28 °C (72 to 82 °F). The hardness of the water range from 10-20. They are very aggressive and are only kept with other similarly aggressive African cichlids, with one male to two or more females. It is not kept more than one male in the same tank, unless it is a large tank with many hiding places.