| Species | Fish |
|---|---|
| Origin | Japan |
| Size Category | Extra Large |
| Category | Fish |
| Original Purpose | Ornamental |
| Body Length | 35–92 cm |
|---|---|
| Lifespan | 25–50 years |
| Senior Age Threshold | 35 years |
| Exercise Needs | Intermediate care level |
|---|---|
| Grooming | Omnivore |
| Annual Exam Focus | Compatible: Other Koi, Goldfish, Common Plecostomus, Hi-Fin Banded Shark |
| Routine Care | Incompatible: Small fish (may be eaten), aggressive cichlids, fin-nipping species |
| Condition | Onset Stage | Risk | Hereditary | Screening |
|---|---|---|---|---|
| Ich (White Spot Disease) | adult | high | No | N/A |
| Fin Rot | adult | medium | No | N/A |
| Columnaris | adult | high | No | N/A |
| Flukes | adult | medium | No | N/A |
| Dropsy | adult | high | No | N/A |
| CHIC Required Tests | Moderate, egg scatterers (require spawning mops or plants, adults may eat eggs) |
|---|---|
| Recommended DNA Tests | Cyprinus rubrofuscus |
| Water Temperature | 15-25°C |
|---|---|
| pH Range | pH 7-8.5 |
| Water Type & Tank | Freshwater, Min tank: 946L |
| Diet | Omnivore |
| Common Issues | Difficulty: Intermediate. Temperament: Peaceful, schooling |
| Locomotion | Schooling, foraging on pond floor, uprooting plants, gentle nudging (social bonding), jumping (when excited or stressed) |
|---|---|
| Social | Peaceful, schooling |
| Stress/Displacement | Clamped fins, gasping at surface, flashing/scratching, hiding, loss of appetite, color fading, sluggishness, red streaks in fins |
| AI-Trainable Signals | Erratic swimming, gasping at surface, clamped fins, flashing/scratching against surfaces, fading/dulling of colors, lethargy/staying at bottom |
|---|---|
| Context-Dependent Vocalizations | Clamped fins, gasping at surface, flashing/scratching, hiding, loss of appetite, color fading, sluggishness, red streaks in fins |
| Interspecies Communication | Water type: Freshwater, pH: 7-8.5 |