Nannacara adoketa
Encyclopedia
Zebra acara is a species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of tropical freshwater fish. It is a dwarf cichlid
Dwarf cichlid
Dwarf cichlid is a term used by fishkeeping hobbyists to describe an arbitrary assemblage of small-sized fish from the family Cichlidae. Although the grouping is widely used in the aquarium industry and hobby, the grouping has no taxonomic or ecological basis and is poorly defined...

 from Rio Uaupes and Rio Preto
Rio Preto
-Places:*Dores do Rio Preto, Espírito Santo, a municipality located in Espírito Santo state, Brazil*Rio Preto, Minas Gerais, a municipality located in Minas Gerais state, Brazil*Rio Preto da Eva, a municipality located in Amazonas state, Brazil...

, two side rivers of Rio Negro in Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

.
The male reaches 12 cm in length, the female is somewhat smaller.

This species prefers a pH
PH
In chemistry, pH is a measure of the acidity or basicity of an aqueous solution. Pure water is said to be neutral, with a pH close to 7.0 at . Solutions with a pH less than 7 are said to be acidic and solutions with a pH greater than 7 are basic or alkaline...

 between 5.0 and 5.5, and a temperature
Temperature
Temperature is a physical property of matter that quantitatively expresses the common notions of hot and cold. Objects of low temperature are cold, while various degrees of higher temperatures are referred to as warm or hot...

between 23 and 27 °C.

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