Maximum Standard LengthĪn aquarium with base dimensions of 80 ∗ 30 cm or equivalent should be the smallest considered. The wetland is rich in aquatic macrophytes with at least 280 species recorded, including members of genera popular in the aquarium hobby such as Echinodorus, Bacopa, Ludwigia, Sagittaria, Eleocharis, and Salvinia. In the Pantanal small characids are often found in extremely clear water where submerged vegetation proliferates. lepidota, Gymnotus inaequilabiatus, Rivulus aff. aeneus, Aequidens plagiozonatus, Crenicichla cf. zebra, Leporinus friderici, Hoplias malabaricus, F arlowella paraguayensis, Rineloricaria cacerensis, Otocinclus sp., Corydoras aff. Sympatric fish species in the Sepotuba watershed include A styanax assuncionensis, Creagrutus meridionalis, Knodus chapadae, Moenkhausia dichroura, Serrapinnus calliurus, Odontostilbe pequira, Pyrrhulina australis, Characidium aff. In some places aquatic macrophytes, including members of the genera Eleocharis, Echinodorus and Echinoria, also grow densely. These comprise flowing tributaries measuring a few metres wide with clear, light brown water and thick marginal vegetation. HabitatĪppears to favour minor tributaries, headwater rivers, oxbows, and seasonally inundated floodplains.įor example, it has been collected from small streams draining to the upper rio Sepotuba in Mato Grosso state, itself a tributary of the upper rio Paraguai. Type locality is ‘Coxim on the Rio Taquary, Rio Paraguay basin, Mato Grosso, Brazil’. The species has also been introduced into natural waters of Minas Gerais in southeastern Brazil via the ornamental trade, with at least one feral population established in the rio Paraíba do Sul basin herbertaxelrodi from Noel Kempff Mercado National Park in the upper Guaporé, at the border between Bolivia and Brazil, suggest that it might also share this pattern of distribution. The latter also has its headwaters in the Pantanal but flows in the opposite direction to the Paraguai and is part of the upper rio Madeira basin, itself a major tributary within the Amazon drainage, with the two watersheds connected due to rising water levels during the annual wet season. Many of the fish species inhabiting the upper Paraguai and Panatanal region also occur in the upper rio Guaporé, known as Iténez in Bolivia, basin. The Sepotuba empties into the Paraguai main channel around 500 kilometres upstream of the Taquiri, thus the species is assumed to occur in other drainages between them. Official records seem limited, but the type locality is located within the upper rio Taquari basin in the municipality of Coxim, while our field images show a specimen collected from the upper rio Sepotuba in the vicinity of Tangará da Serra, some 700 kilometers to the north. This species appears to be widespread throughout the upper rio Paraguai in the states of Mato Grosso and Mato Grosso do Sul, Brazil, both north and south of the the vast tropical wetland known as the Pantanal. Order: Characiformes Family: Characidae Distribution Herbertaxelrodi: named for American author, publisher, and entrepreneur Dr. The Black Neon Tetra will accept many small foods such as brine shrimp or daphnia, freeze-dried bloodworms and tubifex, micro pellet food, and high-quality flake food.Hyphessobrycon: from the Ancient Greek υπελάσσων (hyphesson), meaning ‘of lesser stature’, used as a prefix in this case, plus the generic name Brycon. Be sure to remove the adult Black Neon Tetras after the eggs have been laid, as they will eat the eggs. Live foods such as mosquito larvae are another great inducer. To encourage breeding, water hardness should be less than 4 KH. To breed Black Neon Tetras, separate a pair into a “breeder tank” with no lighting at first, and then gradually increase light levels until spawning occurs. The Black Neon Tetra is a schooling fish and will do best if kept in odd numbers of 5 or more. The Black Neon Tetra thrives in slightly acidic water and will do best when water parameters are kept constant. The addition of rocks and driftwood also help mirror its natural habitat. In turn, the plants offer hiding places for the Black Neon Tetra. The distinct coloration of the Black Neon Tetra complements the shaded green and yellow hues of most freshwater plants. Praised for its peaceful nature, the Black Neon Tetra is a great addition to any soft water community aquarium. A fluorescent orange marking above its eyes completes the telltale markings of the Black Neon Tetra. The body of the iridescent Black Neon Tetra is an elegant blend of deep obsidian black paired with a contrasting bright, neon horizontal stripe of yellow-green. The Black Neon Tetra boasts one of aquaria’s most beautiful and unusual coloration.
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