Can Goldfish Live With Black Skirt Tetra?
Goldfish and Black Skirt Tetra are not compatible due to size mismatch or behavioral conflicts.
Parameter Comparison
| Parameter | Goldfish | Black Skirt Tetra | Overlap |
|---|---|---|---|
| Temperature | 65–75°F | 70–82°F | 70–75°F ✓ |
| pH Range | 6.5–7.5 | 6–7.5 | 6.5–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 12" | 3" | Size mismatch ✗ |
| Min Tank Size | 20 gal | 15 gal | 20 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | beginner | — |
Species Profiles
Goldfish
Carassius auratus
Goldfish are among the longest-kept ornamental fish, with a history spanning over 1,000 years. Despite their reputation as easy, bowl-dwelling pets, goldfish actually require spacious tanks with strong filtration. They are cold-water fish that should not be kept with tropical species. Common varieties include comets, fantails, orandas, and ryukins.
Full care guide →Black Skirt Tetra
Gymnocorymbus ternetzi
Black skirt tetras (also sold as black widow tetras) are hardy, easy-to-care-for schooling fish with a distinctive flowing black anal fin that gives them their name. They come in natural silver-and-black and various dyed/modified versions (GloFish). The natural form is the healthiest choice. They can be mild fin nippers in small groups but are generally well-behaved community fish.
Full care guide →