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The cardinal tetra is a very popular aquarium fish, but is less widespread than the neon tetra because until recently, it was difficult to breed in captivity. However, many breeders are now producing the fish; in most cases, one can determine if the cardinal tetra is bred or wild-caught due to damaged fins on wild-caught specimens.
The fish are also not caught by fish farmers during their breeding season. [9] The cardinal tetra, especially, is considered a renewable resource. [10] Project Piaba assesses the sustainability of the species farmed in the Rio Negro area by using the "F value" which estimates the portion of the catch from the total biomass. [11]
The breeding aquarium for the rummy-nose tetra, in addition, needs to be sterilised prior to use, as the fish produces eggs that are notoriously sensitive to bacterial and fungal infection. Use of an antifungal agent is strongly advised once spawning is completed in order to prevent various fungi from attacking the eggs.
Breeding the Black neon tetra requires acidic water with no more than four degrees of hardness. [ 3 ] The black neon tetra is an egg scatterer, [ 3 ] laying adhesive (sticky) eggs over plants, etc. [ 7 ] One female can produce several hundred eggs.
The cardinal tetra Paracheirodon axelrodi (L. P. Schultz, 1956), The Trinidad tetra Hyphessobrycon axelrodi (Travassos, 1959), The black neon tetra Hyphessobrycon herbertaxelrodi Géry, 1961, The pink corydoras catfish Corydoras axelrodi Rössel, 1962, The African fish Neolebias axelrodi Poll & J. P. Gosse, 1963,
Where does this statement come from, especially because you indirectly state this to be global? As an aquarist myself I know many breeders who actually prefer wild caught. And most of my my colleagues prefer wild caught cardinal tetra's because of low quality captive-bred specimens. If there is no good reference added soon, I will remove that part.
Hemigrammus erythrozonus, commonly known as the glowlight tetra, is a small tropical fish from the Essequibo River, Guyana, South America.It is silver in colour and a bright iridescent orange to red stripe extends from the snout to the base of its tail, the front of the dorsal fin being the same color as the stripe.
A neon tetra can appear slightly plump in the belly due to having overeaten. Neon tetras need dim lighting, a DH less than one, about 5.5 pH, and a temperature of 75 °F (24 °C) to breed. There also needs to be a lot of tannins in the water. Neon tetras are old enough to breed at 12 weeks. [23]