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Black Skirt Tetra

Gymnocorymbus ternetzi

Black Skirt Tetra (Gymnocorymbus ternetzi) is a schooling community species for a cycled 20+ gallon freshwater aquarium. Plan for about 2.5 inches as an adult, 72-80°F water, pH 6-7.5, and beginner-friendly care. Keep a group of at least 6; larger groups often behave more naturally when the tank has room.

Community leaningBeginner-friendly care
Black Skirt Tetra, a community leaning 2.5 inch aquarium species for 20+ gallon tanks
20 galMinimum tank
2.5 inAdult size
6Schooling minimum
72-80°FTemperature

Water Range

pH
6-7.5
GH
4-15 dGH
KH
2-10 dKH

Behavior

Temperament
Peaceful
Fin nipping
2/5
Territory
0/5

Diet and Care

Diet
omnivore
Diet difficulty
1/5
Care difficulty
1/5

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