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Black Neon (Hyphessobrycon herbertaxelrodi) Tetra

HABITAT: Rivers in Brazil. Compatible: Tetras, Rasboras, Danios, Dwarf Gouramis, Livebearers, Corydoras and small Plecos. Aquarium Setup: 72-77°F; pH 5.5-7.0; dH 10-12 Size: 1 3/4 in (4.5 cm) Diet: Omnivorous For detail information about Tetras refer to the articles below: Tetras, a happy school Tetra Care Hyphessobrycon herbertaxelrodi (Black Neon Tetra) Read more »

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Black Tetra (Gymnocorymbus ternetzi)

if not kept on large schools black tetras can display aggressive behaviors amongst themselves, chasing and nipping weaker fishes. A group of 6 or larger is recommended. Avoid mixing them with slow moving, long finned fish like male Betta splendens. For optimal health feed them every two weeks live foods like daphnia and mosquito larvae, and from frozen foods like blood worms. Reaching sexual maturity at about two years of age. They will spawn in water 78 degrees F. A separate spawning tank, heavily planted and at least 15 gallons, […] Read more »

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Bleeding Heart Tetra (Hyphessobrycon erythrostigma)

The bleeding heart tetra is a hardy, peaceful, schooling species that should be kept in groups of six or more. It does extremely well when kept with other peaceful fishes, such as Megalamphodus, Corydoras and Nannostomus species. Bleeding heart tetras prefer a somewhat dark environment. They are best housed in a tank that contains several bunches of large plants (either live or plastic) in back and on the sides of the tank, with smaller plants in the front, leaving plenty of open space for swimming. A layer of floating plants […] Read more »

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Buenos Aires Tetra (Hemigrammus caudovittatus)

The Buenos Aires Tetra can be housed in a aquarium with other soft water fish. Tetras are a schooling fish that work well in groups of six or more fish of the same species. Slightly acidic water is best for optimal breeding habits. After the eggs begin to hatch, removing the parents will reduce the number of lost fry. HABITAT: Argentina, Paraguay and Brazil. The Buenos Aires Tetra will eat most live plants, except Java Fern. Compatible: Tetras, Rasboras, Danios, Dwarf Gouramis, Livebearers, Corydoras, Discus, Angels and small Plecos. Aquarium […] Read more »

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Cardinal Tetra (Paracheirodon axelrodi)

Native to the Orinoco river in South America, they can grow up to 1.25 in (3 cm) and have a striking iridescent blue line characteristic of the Paracheirodon species. Cardinal tetras have a lifespan of one year in the wild, but can live longer in captivity. Often confused with their closely related neon tetras, they can be differentiated upon close inspection by the red stripe which, in neons extends only about halfway across their bodies. The eggs of the cardinal tetra are photosensitive, and will die if exposed to bright […] Read more »

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Glowlight Tetra (Hemigrammus erythrozonus)

When the lights on the aquarium are dimmed, the red stripe on the fish can be clearly seen. It thrives in slightly acidic water and will do best when water parameters are kept constant. The Glowlight or glowing tetras are a schooling fish and will do best if kept in odd numbers of 5 or more. To promote breeding, separate a pair into a “breeder tank” with no lighting at first, and then gradually increase it until spawning occurs. Water hardness should be less than 4 dKH and live food […] Read more »

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Neon Tetra (Paracheirodon innesi)

HABITAT: Bolivia and Brazil Compatible: Tetras, Rasboras, Danios, Dwarf Gouramis, Livebearers, Corydoras, Discus, Angels, Barbs, Rainbowfish and small Plecos. Aquarium Setup: 68-74°F; pH 5.0-7.0; dH 1.0-2.0 Size: 1 in (2.5 cm) Diet: Omnivorous For detail information about Tetras refer to the articles below: Tetras, a happy school Tetra Care Read more »

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Silver Tip Tetra (Hasemania nana)

Compatible: Tetras, Rasboras, Danios, Dwarf Gouramis, Livebearers, Corydoras, Discus, Angels, Barbs, Rainbowfish, Plecos and small Scavenger Catfish. Aquarium Setup: 64-82°F; pH 5.8-8.5; dH 4-20 Size: 2 in (5 cm) Diet: Omnivorous For detail information about Tetras refer to: Tetras, a happy school Tetra Care Read more »

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Tetra Care

Most species will adapt to a range of water conditions so long as the water is clean and well aerated. Extremely high pH (e.g. over 7.6, or 8 for hardy species) and very hard water should be avoided. Most tetras will fade in color if they are stressed or uncomfortable with their surroundings. (But note that many lose all their color at night, which is not a cause for alarm). They are schooling fish and will not be happy unless kept in a group of at least four of their […] Read more »