Care guide, husbandry, breeding, disease, sourcing, and tankmate intelligence on Black Skirt Tetra - written by the Fast Aquatics editorial team and cross-verified against vendor records on the live marketplace.
Black Skirt Tetra (Gymnocorymbus ternetzi) is a freshwater fish kept by aquarists for community + species-specific freshwater displays. Hardy and forgiving of typical beginner mistakes when given proper water chemistry.
Where Black Skirt Tetra comes from
Black Skirt Tetra (Gymnocorymbus ternetzi) is native to specific tropical and subtropical freshwater systems. The captive-bred Black Skirt Tetra sold at most LFS comes from generations of farmed stock and is generally hardier and better-acclimated to tank conditions than wild-caught equivalents. Wild specimens are occasionally available for keepers chasing original-bloodline coloration or biotope-accurate stocking.
Black Skirt Tetra tank size and setup
Black Skirt Tetra requires a minimum of 20 gallons for healthy adults. The minimum is based on the species' adult size (2 inches), territorial range, and behavior pattern. Most Black Skirt Tetra sold at small juvenile size will reach full adult size within 12-24 months and the system must be sized to the adult, not the juvenile.
For a Black Skirt Tetra setup: tank sized for the adult footprint, HOB or canister filter rated 4-6x tank volume, dechlorinated water, appropriate temperature heater, and stocking-appropriate hardscape and plants.
Black Skirt Tetra prefers freshwater parameters: Temperature: 74-80°F pH: 6.5-7.5 GH: 4-12 dGH KH: 3-8 dKH Ammonia + nitrite: Both 0 ppm Nitrate: Under 20 ppm long-term Copper: 0 (especially critical for invertebrates)
Use dechlorinator on every water change. Test parameters weekly during cycling, biweekly once stable. Stable consistency beats sliding-scale "ideal" parameters.
What Black Skirt Tetra eats
Black Skirt Tetra is a omnivore. Eats a varied diet of pellets, frozen foods, and supplemental greens. Quality flake or pellet (Hikari, New Life Spectrum, Tetra) plus frozen mysis or bloodworms 2-3x weekly produces best color and behavior. Feed Black Skirt Tetra appropriately for its size + activity level. Overfeeding is the #1 cause of water-quality crashes in tanks of all sizes.
Black Skirt Tetra tankmates and compatibility
Black Skirt Tetra works in community tanks with peaceful species in similar size class. Adult-size matters more than purchase-size when planning stocking. Avoid mixing aggressive with passive species.
Browse care guides for tankmate-compatibility tables for Black Skirt Tetra and similar species.
Black Skirt Tetra adult size and lifespan
Black Skirt Tetra reaches 2 inches at adulthood with a captive lifespan of 3-5 years with proper care. Most freshwater species live 3-10 years; larger species (oscars, plecos, knifefish) reach 10-20+ years.
Can you breed Black Skirt Tetra?
Black Skirt Tetra can be bred in dedicated breeding tanks with appropriate setup and water-chemistry triggers. Research the species-specific breeding requirements before attempting.
Common Black Skirt Tetra diseases and problems
Black Skirt Tetra is susceptible to standard freshwater diseases (ich, columnaris, fin rot, bacterial infections). Quarantine new Black Skirt Tetra for 4 weeks before adding to your display tank. Treat fish in a separate hospital tank to avoid affecting plants and inverts. Most disease outbreaks trace back to poor water quality, chronic stress, or skipped quarantine.
Where to buy Black Skirt Tetra online
Black Skirt Tetra is sold at LFS (local fish stores), online retailers, and direct from breeders/wholesalers. Pricing varies widely by source, size, and quality:
Browse live Black Skirt Tetra from vetted Fast Aquatics vendors with carrier-tracked overnight shipping (FedEx Priority + UPS Next Day), climate-aware hold logic, and a 4-hour DOA window with photo-evidence claims. Captive-bred or aquacultured specimens cost more upfront but arrive healthier and integrate faster.
Black Skirt Tetra FAQ
How big does Black Skirt Tetra get?
2 inches at adulthood within 12-24 months.
How long does Black Skirt Tetra live?
3-5 years with proper care.
What is the minimum tank/pond size?
20 gallons, with larger systems strongly recommended.
Is Black Skirt Tetra hard to keep?
Black Skirt Tetra is rated beginner difficulty.
What does Black Skirt Tetra eat?
Black Skirt Tetra is a omnivore; appropriate diet matches its natural feeding pattern.
Black Skirt Tetra taxonomy and care recommendations cross-checked against the following authoritative references and our internal vendor + breeder database.