Black Widow Tetra a.k.a Black Skirt Tetra
gymnocorymbus ternetzi

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Cost:
The Black Widow Tetra a.k.a Black Skirt Tetra is a common aquarium fish and its price remains pretty consistently between $2-4.

Short Bio:
The Black Widow Tetra a.k.a Black Skirt Tetra is a fish that is very hardy and will be able to tolerate many different types of water conditions. When younger the Black Widow Tetra a.k.a Black Skirt Tetra has black bands and like to school. As it ages the black fades to a washed-out gray, and it prefers to have its own space and no longer likes to school. The Black Widow Tetra a.k.a Black Skirt Tetra is a very peaceful fish that will get along with almost all types of fish, but it will nip at long finned tankmates such as the guppy and the Betta a.k.a Siamese fight fish.

Origin:
South America in Paraguay and Guapore River Basins in the varied river environments.

Sexual Distinctions:
To tell the different sexes with the Black Widow Tetra a.k.a Black Skirt Tetra you must look at the dorsal and anal fins. The males will have a pointed and narrow dorsal fin and a broader anal fin then the females.

Tank Conditions:
A community tank with no fancy tailed/finned fish. It will nip the fins and tails.
The Black Widow Tetra a.k.a Black Skirt Tetra requires a minimum tank size of 24 x 12 x 12 inches (60 x 30 x 30 cm).

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The temperature should be in the range of 68-79 degrees Fahrenheit (20-26 Celsius). The Black Widow Tetra a.k.a Black Skirt Tetra originates from soft-water areas and so prefers medium to soft, acidic water. Although it prefers this type of water it will however, adapt to, and live quite happily in harder water. To bring out the best of the Black Widow Tetra a.k.a Black Skirt Tetra have a darker substrate and shaded areas. The Black Widow Tetra a.k.a Black Skirt Tetra also likes areas that are planted with either real of fake vegetation. Even though at a younger age the Black Widow Tetra a.k.a Black Skirt Tetra will school tightly together and as it ages will prefer to have its own space but no matter the age you should house about four Black Widow Tetra a.k.a Black Skirt Tetra together in any one tank. Black Widow Tetra a.k.a Black Skirt Tetra will stay in the middle to upper part of the tank.

Food:
In the wild the Black Widow Tetra a.k.a Black Skirt Tetra eats small aquatic animals, seeds, and insect, and being omnivorous and opportunistic feed the Black Widow Tetra a.k.a Black Skirt Tetra a variety of floating and sinking foods in the fish tank.

Behavior:
Black Widow Tetra a.k.a Black Skirt Tetra is a peaceful fish that will school in groups with the males sparing every now and then but this is still normal behavior.

Breeding:
The Black Widow Tetra a.k.a Black Skirt Tetra will breed in the aquarium. It just needs soft, acidic water with tannins from bogwood and or with blackwater which will all help to encourage breeding.