Can Black Skirt Tetra Live With Jack Dempsey Cichlid?
Jack Dempsey Cichlid is aggressive and will likely attack or stress tank mates.
Parameter Comparison
| Parameter | Black Skirt Tetra | Jack Dempsey Cichlid | Overlap |
|---|---|---|---|
| Temperature | 70–82°F | 72–86°F | 72–82°F ✓ |
| pH Range | 6–7.5 | 6.5–8 | 6.5–7.5 ✓ |
| Temperament | peaceful | aggressive | Aggression risk ✗ |
| Max Size | 3" | 10" | Size mismatch ✗ |
| Min Tank Size | 15 gal | 55 gal | 55 gal minimum together |
| Diet | Omnivore | Carnivore | — |
| Care Level | beginner | intermediate | — |
Species Profiles
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 →Jack Dempsey Cichlid
Rocio octofasciata
Named after the legendary boxer, Jack Dempsey cichlids are large, territorial Central American cichlids with iridescent blue-green spangles across their dark body. They are aggressive, intelligent, and interactive — many owners report them coming to the glass to greet them. The electric blue Jack Dempsey variant is significantly less aggressive and more colorful.
Full care guide →