• Freshwater > Fish > Characidae

  • Aphyocharax anisitsi (Blood Fin Tetra)



    Quick Ref.
    Species: Aphyocharax anisitsi
    Geo. Location: Argentina, Paraguay
    PH: 6.5 - 7.5
    Temperature: 65 - 82F
    Water Hardness: 5 - 20dh
    Size: 2.0"
    Diet: Flakes, live foods, frozen foods...
    Difficulty: 1

    Photo Credit: FishandTips.com
    Notes: Aphyocharax anisitsi is a small Characidae originating from South America (Argentina, Paraguay). Like most Tetras, this species is quite easy to keep in captivity and can adapt to most aquarium water conditions. First described by Eigen Mann and Kennedy in 1903, the Blood Fin Tetra is also sometimes called Aphyocharax rubripinnis.
    Blood Fin Tetras have a slender and elongated body. They are usually blue/grey with a multitude of reflections going from green to yellow. Their caudal and dorsal fins have a distinct red dot at the base. Their mouth is small, has one row of teeth and points upward.
    Aphyocharax anisitsi is a hardy fish. Although it prefers cooler water temperatures (72-72F), neutral Ph (6.5 to 7.5) and softer waters, it can adapt itself to numerous water conditions. Although this is not recommended, this species is known to be able to withstand water hardness up to 30 dH. Blood Fin Tetras is a great beginner fish.
    This fish does not usually grow more than a couple inches in aquarium. Kept in proper conditions, it can live up to 10 years. In captivity, Blood Fin Tetras live in the middle to upper part of the tank. They are active and like to swim across the tank. For this reason, the aquarium should be long with open swimming space. The remaining part of the tank should be heavily planted as this Characidae likes shaded/planted areas. A dark substrate is recommended.
    Aphyocharax anisitsi is a great community fish as it behaves very well among other small Tetras species. It must however, be kept in shoals of 10 or more.
    The Blood Fins Tetra will eat pretty much anything, from dry flakes to live foods. It however prefers live insect larvae and other live foods.
    Because this fish is very hardy and behave very well in community tanks, it is the perfect addition to a beginner’s tank. It is also less popular than some other Tetras species which could appeal to other curious hobbyists.

    Breeding: Like most Tetras species, reproduction of Aphyocharax anisitsi is not an easy task. Sexual diphormism is easier to notice during the breeding season: males show brighter colors. In general, males also have longer fins (small hook on the anal fin) whereas females are a little bigger than their counterparts.
    Optimum water condition for reproduction is around 80 F. Hardness should not exceed 10 dH. The reproduction technique is very similar to the one for Danios. The tank should have only a few inches of water (5” to 7”) and the substrate should be replaced by marbles. When a couple is ready to breed, they look for a spot among the plants. The male hunts the female until the eggs are released. The eggs fall in the bottom of the tank, between the marbles where the parents can not reach them. Remove the parents as soon as the female is done releasing the eggs. Usually the female release a few hundred eggs (in some cases up to 800) that will hatch in 30 to 36 hours. The fry becomes free swimming after 4 or 5 days. Fry will take infusoria as first food. When they become big enough, feed the fry with brine shrimp naupplii.

    Contacts pierre@fishandtips.com