Can koi live with discus?
Verdict
No
No. Koi and discus should not share a tank. Koi are coldwater animals (59–77°F); discus need 82–88°F. No temperature suits both.
What to watch
- Deal breakerKoi are coldwater animals (59–77°F); discus need 82–88°F. No temperature suits both.
- Watch outWater chemistry is a squeeze. The only pH that suits both is around 7.
- Watch outA grown koi may treat small discus as food, especially at night.
Water side by side
Size to scale
Care at a glance
| Koi | Discus | |
|---|---|---|
| Temperature | 59–77 °F | 82–88 °F |
| pH | 7–8.5 | 5.5–7 |
| Adult size | 24.0 in | 6.0 in |
| Minimum tank | Pond | 55 gal |
| Temperament | Peaceful | Peaceful |
| Swims at | All levels | Middle |
| Group | Groups of 3+ | Groups of 5+ |
| Diet | Omnivore | Carnivore |
Better tank mates for koi
Better tank mates for discus
Questions
Can koi live with discus?
No. Koi and discus should not share a tank. Koi are coldwater animals (59–77°F); discus need 82–88°F. No temperature suits both.
What temperature suits both koi and discus?
None. Koi need 59–77 °F and discus need 82–88 °F, so the ranges do not meet.
What size tank do koi and discus need together?
A pond. Koi outgrow indoor tanks.