Oranda Goldfish (Carassius auratus)
Native Location: China
Size: 20cm (8 inches)
Temperature Range: 18 – 21℃ (65 – 70℉)
Preferred pH Range: 6.5 – 7.5
Minimum Aquarium Size: 200L (50 gallons)
Potential Tankmates: Other Oranda
Care Level: Intermediate
Oranda Goldfish can be a sign of wealth and influence that continues to fascinate aquarium hobbyists.
An Orandas diet is like that of a wild Carp. As omnivores, they feed on insects, small crustaceans, and plants. They will try to eat anything that floats down in front of them. Try to include vegetables like salad or spinach. While Oranda is easy to feed, it can be easier to overfeed them, and they will gain too much weight and have the potential to become obese. If you spot your fish swimming on their side, skip feeding that day and let them rest. Then in the future, give them smaller portions to avoid overfeeding. Adult Oranda should be fed once a day. Avoid putting Oranda with smaller and active species. Not only will they become a snack, but likely, before they go, they get the chance to nip fins. Fin nippers are unpleasant for Oranda and could cause fin rot. Orandas are peaceful and social, so keep them with other breeds of Goldfish of a similar size and speed. They are not schooling fish but will always thrive in a group. Make sure you can comfortably accommodate multiple Oranda together in your tank.
Orandas are not fast swimmers, but you can still see them spending most of their days swimming or digging. The substrate will need to be smooth gravel or large grain of sand. Plant live vegetation provided Oranda will still have a lot of space to swim around. If you restrict the area they have to swim in, it could cause stress or sickness. Try small, sturdy leafed plants. As Goldfish are, Oranda will produce a lot of waste, so a quality filtration system is required. And oxygen-rich water is also vital.
Unlike other Goldfish and fish in general, the female can appear slimmer than the male, giving the impression they are male. On the male gill plate will appear white tubercles. In the past few years, breeding has become more popular for Oranda. You will need a separate breeding tank with round substrate and vegetation. Spawning will take place in the early hours of the morning. Remove adult fish once spawning has occurred, or your eggs and fry will get eaten.