Can jack dempseys live with rosy barbs?
Verdict
No
No. Jack dempseys and rosy barbs should not share a tank. An adult jack dempsey eats fish that fit in its mouth, and at 4 inches rosy barbs do.
What to watch
- Deal breakerAn adult jack dempsey eats fish that fit in its mouth, and at 4 inches rosy barbs do.
- Deal breakerJack dempseys are aggressive and much bigger than rosy barbs.
What works
- Both are fine at 72–77°F.
- pH 6.5–7.5 suits both.
Water side by side
Size to scale
Care at a glance
| Jack Dempsey | Rosy barb | |
|---|---|---|
| Temperature | 72–86 °F | 64–77 °F |
| pH | 6.5–7.5 | 6–7.5 |
| Adult size | 10.0 in | 4.0 in |
| Minimum tank | 55 gal | 30 gal |
| Temperament | Aggressive | Semi-aggressive |
| Swims at | Middle | Middle |
| Group | Alone or in pairs | Groups of 6+ |
| Diet | Carnivore | Omnivore |
Better tank mates for jack dempseys
Better tank mates for rosy barbs
Questions
Can jack dempseys live with rosy barbs?
No. Jack dempseys and rosy barbs should not share a tank. An adult jack dempsey eats fish that fit in its mouth, and at 4 inches rosy barbs do.
What temperature suits both jack dempseys and rosy barbs?
72–77 °F. Jack dempseys need 72–86 °F, rosy barbs need 64–77 °F.
What size tank do jack dempseys and rosy barbs need together?
At least 55 gal, set by the jack dempsey. Add space for each extra fish.