Overview

Comprehensive Description

Biology

Inhabits turbid standing waters as well as clear free flowing streams (Ref. 11225). Feeds on worms, crustaceans and insects (Ref. 7020). Reproduces in captivity (Ref. 26543). Both parents guard the eggs and larvae (Ref. 7020). Has been used to control mosquito larvae (Ref. 40602). Aquarium keeping: in pairs; minimum aquarium size 100 cm (Ref. 51539).
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Distribution

Central and South America: Trinidad and Venezuela.
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Physical Description

Morphology

Anal spines: 3
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Size

Max. size

16.0 cm TL (male/unsexed; (Ref. 36377))
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Diagnostic Description

Aequidens is very similar to Geophagus but is differentiated by the number of spines on the anal fin and the lacks of a lobule on the first branchial arch found in Geophagus; live specimens olive green, with eight obscure transverse bands on the body; numerous bright bluish-green lines on the cheek; males are more colorful and grow bigger than females; males blue in color during the reproductive season (Ref. 26543).
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Ecology

Habitat

Environment

benthopelagic; freshwater; pH range: 6.5 - 8.0; dH range: 25
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Trophic Strategy

Inhabits turbid standing waters as well as clear free flowing streams (Ref. 11225). Feeds on worms, crustaceans and insects (Ref. 7020). Reproduces in captivity (Ref. 26543).
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Diseases and Parasites

White spot Disease. Parasitic infestations (protozoa, worms, etc.)
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Turbidity of the Skin (Freshwater fish). Parasitic infestations (protozoa, worms, etc.)
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Costia Disease. Parasitic infestations (protozoa, worms, etc.)
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Bacterial Infections (general). Bacterial diseases
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Life History and Behavior

Life Cycle

In captivity, both male and female clean a rock which will be the spawning area. Eggs are laid on the rock by the female and fertilized by the male. Both male and female guard the eggs, which hatch in 2 to 5 days, and continue to look after the fry for some weeks (Ref. 7020). In cases of danger, the male protects its young by placing them inside its mouth (Ref. 26543).
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; aquarium: highly commercial
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Wikipedia

Blue acara

The blue acara, Andinoacara pulcher,[1] is a very colorful freshwater fish in the cichlid family. This fish can be found in Central and South America, from Panama to Colombia. They can reach lengths of 20 cm (7.9 in). The name Andinoacara pulcher is indicative to its looks; pulcher meaning "beautiful" The blue acara is a common cichlid sold in many pet stores, and is often confused with or sold as a green terror (Andinoacara rivulatus).

The body is stocky and compact with a steel blue-gray coloration. Noticeable horizontal green lines occur on their faces and their blueish-green scales give them a sparkling appearance. They also have long, flowing fins with a hint of orange to the tips.

Blue acaras natively live in a tropical climate and prefer water with a pH of 6.5-8.0, a water hardness of 25° dGH, and a water temperature of 22–30 °C (72–86 °F).[2][3]

Geographical location[edit]

The blue acara lives in South and Central America, south to Trinidad and Tobago, Colombia, and Venezuela. The species can be found in both clear and turbid flowing streams.

Size and appearance[edit]

The blue acara normally grows to around 13 cm, but has been scientifically measured at 16.0 cm (6.3 in). The body is compact and stocky, while the fins are long and flowing, with a rounder head than on similar cichlids.

The main body colour can vary from browns to blues to black due to local diversity. The body is decorated with five to eight vertical black stripes (which may not always be distinctly visible) and blue iridescent spots, and the face sports a few horizontal green lines. The fins have a hint of orange on the tips and some specimens have a red topfin rim. A distinctive black line is present going from the eye down the cheek; this one line is not found on other similar cichlids.

Reclassification[edit]

Formally Aequidens pulcher, this fish was suggested to be reclassified in 2012 during the study of Andinoacara rivulatus Stalsbergi and the recently discovered Andinoacara bloombergi.[4] The fish was included into the Andinoacara genus due to the genetic similarity with the new family.

References[edit]

  1. ^ "Phylogeny of the Neotropical cichlid fish tribe Cichlasomatini (Teleostei: Cichlidae) based on morphological and molecular data, with the description of a new genus. Journal of Zoological Systematics and Evolutionary Research. Volume 47 Issue 3, Pages 234 - 247." [1]
  2. ^ "Avila, Marcos A (1997-2008). "Aequidens Pulcher", The Age of Aquariums."[2]
  3. ^ "Brough, David (1998-2008). "Aquidens Pulcher, Blue Acara", Dr. Jungle's Animal World."[3]
  4. ^ N., S.O. Kullander and R.E. Barriga Salazar, 2012. Andinoacara blombergi, a new species from the Río Esmeraldas basin in Ecuador and a review of A. rivulatus (Teleostei: Cichlidae). Ichthyol. Explor. Freshwat. 23(2):117-137.


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