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The Gymnocorymbus Ternetzi - Black Skirt Tetra (Small/Medium) is a high-performance biological asset, engineered for structural reliability and high-contrast movement in technical freshwater systems. Characterized by its iconic deep-bodied profile and distinctive vertical black banding that fades into a saturated "skirted" anal fin, this Small/Medium variant is a masterclass in architectural aquatic design. In the "Answering Machine" era of specialized freshwater husbandry, the Black Skirt is prized for its extreme durability and its status as a foundational schooling species for both community and high-traffic setups.
Unlike more delicate characins, G. ternetzi offers a bold, graphic silhouette that emphasizes the species' rhythmic, synchronized movement through the middle water column. This is a high-utility specimen that provides a constant display of alert behavior and structural consistency.
Note: Images shown are stock images and not the actual fish you will receive.
Visualization Note: Some product imagery utilizes generative AI to provide a high-fidelity representation of a mature specimen’s architectural profile. These are not photos of the specific individual you will receive, as biological variance is a standard in high-end husbandry.
Care Level: Easy
Temperament: Peaceful to Semi-Aggressive (Active)
Variant Size: Small/Medium
Minimum Tank Size: 15 Gallons
Diet: Omnivore
Reef Compatible: N/A (Freshwater)
Max Size: 2 Inches
Temperature: 72° to 82°F
dKH: 3 to 15
pH: 6.0 to 8.0
The Black Skirt Tetra requires a stable freshwater environment with structural elements to support its social mechanics:
Structural Layout: Significant background planting and driftwood are recommended to provide security zones, allowing the specimen to maintain its deep black saturation without stress-induced muting.
Swimming Lanes: Maintain open horizontal space for schooling; this species is active and requires room for high-velocity maneuvers.
Lighting: Subdued lighting or tea-colored water (blackwater conditions) will emphasize the metallic silver-and-black contrast of the body profile.
This is a social, high-energy schooling species. To maintain social stability and minimize the fin-nipping behavior occasionally associated with under-stocked groups, they must be kept in groups of 6 or more. They are generally peaceful and integrate well with other active residents such as Barbs, Danios, and Corydoras. Avoid housing with exceptionally slow-moving or long-finned species (like Bettas) that may be stressed by the Black Skirt’s activity level.
Success with Gymnocorymbus ternetzi hinges on a varied nutritional protocol. They are active foragers and should be fed twice daily with high-quality flakes and micro-granules. Supplement with frozen bloodworms or brine shrimp to maintain peak metabolic health and immune function. Maintaining stable water parameters through regular 25% weekly water changes is the primary success factor for long-term vitality.
We utilize specialized logistics for national Overnight Delivery to ensure livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs to maintain stable temperatures throughout the journey. This protocol is strictly designed to minimize transport stress and ensure a technical transfer from our facility to your tank with zero compromise on health or vitality.
The Gymnocorymbus Ternetzi - Black Skirt Tetra (Small/Medium) is a high-performance biological asset, engineered for structural reliability and high-contrast movement in technical freshwater systems. Characterized by its iconic deep-bodied profile and distinctive vertical black banding that fades into a saturated "skirted" anal fin, this Small/Medium variant is a masterclass in architectural aquatic design. In the "Answering Machine" era of specialized freshwater husbandry, the Black Skirt is prized for its extreme durability and its status as a foundational schooling species for both community and high-traffic setups.
Unlike more delicate characins, G. ternetzi offers a bold, graphic silhouette that emphasizes the species' rhythmic, synchronized movement through the middle water column. This is a high-utility specimen that provides a constant display of alert behavior and structural consistency.
Note: Images shown are stock images and not the actual fish you will receive.
Visualization Note: Some product imagery utilizes generative AI to provide a high-fidelity representation of a mature specimen’s architectural profile. These are not photos of the specific individual you will receive, as biological variance is a standard in high-end husbandry.
Care Level: Easy
Temperament: Peaceful to Semi-Aggressive (Active)
Variant Size: Small/Medium
Minimum Tank Size: 15 Gallons
Diet: Omnivore
Reef Compatible: N/A (Freshwater)
Max Size: 2 Inches
Temperature: 72° to 82°F
dKH: 3 to 15
pH: 6.0 to 8.0
The Black Skirt Tetra requires a stable freshwater environment with structural elements to support its social mechanics:
Structural Layout: Significant background planting and driftwood are recommended to provide security zones, allowing the specimen to maintain its deep black saturation without stress-induced muting.
Swimming Lanes: Maintain open horizontal space for schooling; this species is active and requires room for high-velocity maneuvers.
Lighting: Subdued lighting or tea-colored water (blackwater conditions) will emphasize the metallic silver-and-black contrast of the body profile.
This is a social, high-energy schooling species. To maintain social stability and minimize the fin-nipping behavior occasionally associated with under-stocked groups, they must be kept in groups of 6 or more. They are generally peaceful and integrate well with other active residents such as Barbs, Danios, and Corydoras. Avoid housing with exceptionally slow-moving or long-finned species (like Bettas) that may be stressed by the Black Skirt’s activity level.
Success with Gymnocorymbus ternetzi hinges on a varied nutritional protocol. They are active foragers and should be fed twice daily with high-quality flakes and micro-granules. Supplement with frozen bloodworms or brine shrimp to maintain peak metabolic health and immune function. Maintaining stable water parameters through regular 25% weekly water changes is the primary success factor for long-term vitality.
We utilize specialized logistics for national Overnight Delivery to ensure livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs to maintain stable temperatures throughout the journey. This protocol is strictly designed to minimize transport stress and ensure a technical transfer from our facility to your tank with zero compromise on health or vitality.
