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Arnoldichthys spilopterus (BOULENGER, 1909)

African Red-eyed Tetra

March 13th, 2012 — 1:19pm

Endemic to Nigeria, where it occurs in the Ogun and lower Niger river systems. Despite its popularity in the aquarium hobby it’s relatively scarce in the wild and is known from less than 10 localities, all lying in an area where deforestation and pollution are uncontrolled and continue to occur extensively.

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Paracheirodon axelrodi (SCHULTZ, 1956)

Cardinal Tetra

March 13th, 2012 — 1:18pm

It was initially going to be described as Hyphessobrycon cardinalis by Myers and Weitzman (1956) but just before this was due to be published Schultz presented an alternative description in the hobbyist magazine ‘Tropical Fish Hobbyist’ and named the fish after the publication’s founder, Dr. Herbert R. Axelrod.

A significant proportion of the fish available in the aquarium trade are still wild caught or derive from community-led breeding projects such as Project Piaba in the middle Negro region, where this sp…

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Paracheirodon innesi (MYERS, 1936)

Neon Tetra

March 13th, 2012 — 1:18pm

One of the most popular and instantly recognisable fishes in the aquarium hobby, this species has been selectively-bred to produce a number of additional strains including albino, ‘golden’ (leucistic), short-bodied, long-finned and ‘diamond’ (in which the dorsal surface is covered in reflective scales).

Unfortunately years of commercial breeding have somewhat affected the genetic vigour of the ornamental strain meaning morphological defects an…

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