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Ctenopharyngodon idella (VALENCIENNES, 1844)

Grass Carp

September 30th, 2014 — 12:57pm

Despite being a wholly unsuitable aquarium subject, C. idella is often traded as such, with an albino form having been developed specifically for the ornamental market.

Individuals which have outgrown their aquarium or pond should never be released into natural waters, either, since this species has proven capable of causing serious environmental damage under a wide range of climatic conditions.

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Hyphessobrycon compressus (MEEK, 1904)

Mayan Tetra

February 15th, 2014 — 1:46pm

H. compressus is the type species of the genus Hyphessobrycon but is not well-known in the ornamental trade.

Hyphessobrycon was raised by Durbin in Eigenmann (1908) as a subgenus of Hemigrammus, differing from the latter by the absence of scales on the caudal-fin.

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Cyprinodon variegatus LACEPÈDE, 1803

Sheepshead 'Minnow'

October 19th, 2013 — 4:52pm

Tends to be most common in brackish to hypersaline environments such as coastal salt marshes, lagoons and estuaries.

On San Salvador Island, Bahamas, it appears to be the parent of a species group occurring in sympatry and exploiting diverse but specific resources with some spectacular morphological adaptations.

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Cyprinodon veronicae LOZANO-VILANO & CONTRERAS-BALDERAS, 1993

Charco Palma Pupfish

September 3rd, 2013 — 10:33am

The surrounding area is semi-arid and the Bolsón de Sandia was once a beautiful oasis with a number of springs, abundant vegetation and diverse wildlife but has dried up over the last twenty to thirty years due to indiscriminate water extraction for agriculture and other human uses.

Three endemic species of Cyprinodon, namely C. veronicae, C. longidorsalis and C. ceciliae, have been described from separate springs within the system…

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Cyprinodon pachycephalus MINCKLEY & MINCKLEY, 1986

July 31st, 2013 — 1:06pm

Need not be too complicated so long as there are plenty of broken lines-of-sight.

Provide plenty of cover in the form of aquatic plants, wool mops, etc., and if using filtration air-powered, sponge-type units are best as these will not harm eggs or fry.

Lighting is unimportant but can be use…

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Cyprinodon julimes DE LA MAZA-BENIGNOS & VELA-VALLADORES, 2009

Julimes Pupfish

July 31st, 2013 — 11:57am

El Pandeño de los Pando has a surface area of around 287 m² with depth ranging from 40-80 cm but there is an abandoned artificial channel which has an area of approximately 437 m².

Water temperature fluctuates between 38-48°C/100.4-118.4°F and the spring is considered one of the hottest environments inhabited by fish in the world.

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Cyprinodon alvarezi MILLER, 1976

Potosí Pupfish

July 30th, 2013 — 4:53pm

The type locality originally consisted of a single spring-fed pond located in an endorheic basin known as ‘La Hediondilla’ at the foot of the ‘Cerro Potosí’ mountain and around 1880 m AMSL.

It had been modified to make it larger via an earth and rock dam, and below the pond were several distributaries running for a distance of 1-1.5 km.

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Atractosteus tropicus GILL, 1863

Tropical Gar

April 11th, 2012 — 2:35pm

Found in both Caribbean and Pacific-slope drainage basins in Central America, from southern Mexico through Belize, Guatemala, Honduras and Nicaragua, and into Costa Rica.

This species clearly shouldn’t ‚ be considered a home aquarium‚ subject at all given its eventual size and the fact it can live for‚ several decades.‚

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Cualac tessellatus MILLER, 1956

Checkered Pupfish

March 13th, 2012 — 1:25pm

Endemic to a handful of natural springs in the Río Verde valley, San Luis Potosí state, Central Mexico. The valley is believed to have once been filled by a large lake and the relict springs are part of the elevated Río (river) Verde basin which later drains into the much larger Río Pánuco system. Much of the aquatic fauna found in the valley is endemic to the area but in many cases threatened by introduced species.

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Ariopsis seemanni (GÜNTHER, 1864)

Colombian Shark Catfish

March 13th, 2012 — 1:22pm

This species is not recommended to those lacking the facilities to house it for life. Sadly it’s all too often seen for sale as an attractive, silvery 2-3″ juvenile, supposedly suitable for the general freshwater community tank. To make matters worse, it is also usually given an ‘alluring’ name such as ‘black-finned’ or ‘silvertip’ shark catfish. The fate of the majority of these specimens is in all likelihood a depressing one.

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