Full Grown Oranda Goldfish: Size, Appearance, Price & More
Oranda goldfish are a popular and intriguing variety of goldfish known for their large, bulbous head growths called "wen." In this guide, we'll cover everything you need to know about caring for an Oranda goldfish once it has reached full maturity.
Size at Full Growth
On average, a fully grown Oranda goldfish can reach 8-10 inches in body length. Their bulbous wen growth can add another 2-4 inches to their overall size. Females tend to grow slightly larger than males on average.
Weight at Full Growth
A mature Oranda goldfish typically weighs between 1-2 pounds. Larger specimens over 1 foot in length may push 3 pounds or more. Proper feeding and care are important to prevent obesity.
Appearance at Full Growth
At maturity, Oranda goldfish develop their signature globular wen growth. Their bodies take on an elongated shape with a rounded belly. Scales become more prominent. Colors tend to deepen and intensify, with various color patterns like red, white, black, orange appearing more defined.
Personality at Full Growth
Oranda goldfish tend to become more peaceful and docile as adults. While juveniles may nip at tankmates, mature ones usually co-exist well with others of similar size. They can still demonstrate curiosity by exploring the tank and may beg for food at the water's surface.
Price
Expect to pay $15-30 for a juvenile Oranda goldfish at your local pet store. Show-quality, full-grown specimens with impressive wens can fetch $50-100 from specialty breeders.
Food/Feeding
A fully grown Oranda requires about 1-2 teaspoons of food per day. Feed high-quality goldfish flakes, pellets, or algae wafers. Variety is best. Remove any uneaten food after 5 minutes to prevent water pollution.
Lifespan
Oranda goldfish can live 10-15 years on average with excellent care. Top-shelf aquatic filtration, water changes, and a well-balanced diet keep them healthy long-term.
Health at Full Growth
Watch for signs of disease like fin rot, dropsy, or body ulcers. Orandas are also prone to wen tumours, which can require surgical removal. Keep water pristine to avoid health issues. Water parameters should be:
- Temperature: 65-75°F
- pH: 6.8-8.0
- Ammonia/Nitrite: 0 ppm
- Nitrate: less than 20 ppm
Care and Nutritional Needs at Full Growth
Mature Orandas need tank maintenance like any goldfish. Perform partial water changes 1-2 times weekly to remove waste. Use a gravel vacuum. Test water quality regularly. Feed a nutrient-rich diet low in fillers to support an active, healthy lifestyle into old age. Consider adding tank decor and plants for stimulation.
Costing
The costs of owning a fully grown Oranda goldfish include:
- Purchase price: $15-100 depending on source
- Food: $5-10 per month
- Water testing supplies: $20-40 annually
- Filter maintenance/replacement: $30-100 annually
- Tank setup/equipment: $100-1000 depending on size
Possible Behavioral Changes of a Fully Grown
Some Orandas may become slightly less active as seniors but should still show interest in their environment. Beware signs of lethargy, lack of appetite, or anti-social behavior as potential health issues. Mature fish know their territory and may defend it from newcomers.
Notable Characteristics of a Fully Grown
In addition to their large size and wen growth, mature Orandas show off deep, rich colors like red, orange or metallic green/blue fins and scaling. Their fins also become fuller. Wen tumors can develop with age but do not typically impact quality of life. Goldfish showing interest in tank furnishings may be nest-building, a natural breeding behavior.
Housing Needs
A single Oranda enjoys a minimum of 20-30 gallons as an adult with ample horizontal swimming space. Add 10 gallons per additional fish for groups. Include hiding places, ledges, live plants for stimulation and oxygenation. Well-filtered canisters are best for large bioloads.
Breeding a Full Grown Oranda
Mature Orandas over 1 year old may naturally spawn in spring/summer if conditions are suitable. Separate sexes except during breeding. Chilled water, plants/ structure with 5-inch substrate and regular feedings encourage eggs to hatch. Fry need infusoria then powdered foods.
Summary
With rich colors, intriguing wen growths, and relaxed demeanor, adult Oranda goldfish make excellent community pond fish or aquarium inhabitants. Keeping these beautiful butterballs healthy into old age requires proper maintenance but rewards owners with a lifetime of enjoyment. I hope this guide provided helpful information on caring for a fully grown Oranda!
Chef Nora Benson
Nora Benson, a four-time IACP award-winning chef, is a respected voice in modern American cooking. She’s the author of seven bestsellers, a frequent guest on The Food Network, and featured in The New York Times and Cooking Light.
