Species Profile
Black Skirt Tetra
Gymnocorymbus ternetzi
Tetrasfin-nipper
Adult size
2.5″
Minimum tank
20 gal
Temperature
70–79°F
pH
6–7.5
Schooling
Group of 6+
Water level
mid
Diet
Flake, pellets, frozen
Notes
Larger silver-and-black diamond-shaped tetra, sold in dyed neon morphs (skip those, the dye is injected). Can nip long fins, especially in small groups; 8+ minimizes the problem. Wants a planted tank with open mid-water for swimming.
Photo: Sychriscar / Wikimedia Commons · Source · CC-BY-SA-3.0