The oranda has many variations. This variety can be a bit confusing and makes people think they are different species. Orandas are easily recognized by their cap (a series of outgrowths on their head). The cap is a distinctive feature of this species and is also known as the ‘wen’. This usually doesn’t fully develop until they are around 2 years old.
| Scientific Name | Common Name | Size | Temperament |
| Carassius Auratus | Black back oranda | 300mm | Peaceful |
| Water Temp | Water Ph | Tank Size | Diet |
| 10-24oC | 6.5-7.5 | 500L/fish | Herbivore |