Pristella Tetra, X-Ray Tetra (Pristella maxillaris)
Tropical Fish

Tropical Fish Keeping - Aquarium fish care and resources » Reference Material » Freshwater Fish Profiles » Characid Species » Pristella Tetra, X-Ray Tetra (Pristella maxillaris)

Pristella Tetra, X-Ray Tetra (Pristella maxillaris)

This is a discussion on Pristella Tetra, X-Ray Tetra (Pristella maxillaris) within the Characid Species forums, part of the Freshwater Fish Profiles category; --> Family: Characidae, Hemigrammus Clade Common Name: Pristella Tetra, X-Ray Tetra Origin and Habitat: South America: basins of the Amazon and Orinoco, and coastal river ...

Reply
LinkBack Thread Tools vBmenu Seperating Image Search this Thread vBmenu Seperating Image
Pristella Tetra, X-Ray Tetra (Pristella maxillaris)
Old 05-29-2013, 07:06 PM   #1
 
Pristella Tetra, X-Ray Tetra (Pristella maxillaris)

Family: Characidae, Hemigrammus Clade

Common Name: Pristella Tetra, X-Ray Tetra

Origin and Habitat: South America: basins of the Amazon and Orinoco, and coastal river drainages of the Guianas. Found in calm coastal waters and in densely vegetated swamps inland.

Compatibility/Temperament: Very peaceful and somewhat active, a good community fish with other characins, small catfish and loaches, dwarf cichlids, the hardier gourami species, angelfish, rasbora, barbs or livebearers.

Pristella Tetra Diet

Omnivorous, will accept practically any prepared flake, dry or frozen food. An active feeder.

Size

Reaches 1.75 inches when mature.

Minimum Tank Suggestion

A tank 24 inches in length.

Water parameters for Pristella Tetra

Very adaptable for a tetra. Soft to slightly hard (hardness to 30/35 dGH), acidic to basic (pH up to 8.0) water, temperature 24-28C/74-82F. In hard water it will not be colourful.

Description

Due to its adaptability to varying water conditions and being quite hardy, this tetra is a good fish for almost any community aquarium and well suited to new aquarists. Shoaling by nature, it must be kept in a group of at least six but preferably more. It does not appreciate bright lighting, and although adaptable to basic harder water, it will not achieve maximum colouration in hard water. This is one of the few characins that occur in brackish water in the coastal habitat of its range, though aquarium fish are commercially raised and best suited to freshwater without salt. In a well-planted aquarium with soft water it will sparkle.

No external sexual dimorphism; females are noticeably stockier than males. A prolific spawner in soft, acidic water; in its habitat, it moves into the flooded savannah and spawns among the thick vegetation where the water is soft and acidic due to the dissolved organic matter.

This species was described by Ulrey in 1894, and is currently the only species in the genus; the older name Pristella riddlei is incorrect and now considered a synonym. Gery grouped this genus with Megalamphodus (Black and Red Phantoms), noting that it was very close to the Hyphessobrycon bentosi group. [Weitzman & Palmer (1977) reassigned the Megalamphodus species to Hyphessobrycon.] Aside from internal similarities, these species share a "signal" black spot on the dorsal that is usually framed by white. Gery (1977) surmised that the species enter into protective associations with each other.

The genus Pristella was previously considered within the subfamily Tetragonopterinae, but this classificationhas for some time been deemed incertae sedis [Latin for "of uncertain placement"]. Javonillo, et al. (2010) determined that the subfamily Tetragonopterinae should only be used for species within the genus Tetragonopterus. Also, J. Marcos Mirande (2009) proposed several revisions to the family Characidae based upon phylogenetic diagnosis. Some genera have been moved to a new subfamily, while others are now (temporarily) assigned to a specific clade within the family pending further study.

References:

Javonillo, Robert, Luiz R. Malabarba, Stanley H. Weitzman and John R. Burns (2010), "Relationships among major lineages of characid fishes (Teleostei: Ostariophysi: Characiformes), based on molecular sequence data," Molecular Phylogenetics and Evolution, Vol. 54, No. 2 (February 2010).

Mirande, J. Marcos (2009), "Weighted parsimony phylogeny of the family Characidae (Teleostei: Characiformes)," Cladistics, Vol. 25, No. 6 (July 2009).

Contributing Members

The following members have contributed to this profile: Byron
Attached Images
File Type: jpg Pristella maxillaris group.jpg (37.6 KB, 32 views)
File Type: jpg Pristella maxillaris.jpg (81.1 KB, 34 views)

Last edited by SeaHorse; 09-21-2013 at 09:26 PM..
TFK Team is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Are these Pristella Tetra eggs?? JessicaC Fish Breeding 3 01-11-2013 08:42 AM
what fish could live with pristella tetras? jack26707 Characins 3 04-11-2012 04:02 PM
gold pristella tetras and pristella tetras Maiachan Characins 2 01-20-2012 09:05 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -5. The time now is 12:17 AM.