Red Cap Oranda Goldfish (Carassius auratus)

The Red Cap Oranda Goldfish (Carassius auratus) is one of the most elegant fancy goldfish ever bred: a snow white, egg-shaped body crowned with a cherry red wen, the raspberry-like hood that gives orandas their signature look. These are imported fish at 2.5 to 3 inches, young enough that the cap will keep developing for years as the fish grows into a graceful, dinner-plate-size centerpiece. Peaceful, personable, and quick to learn who feeds them. Browse the rest of our freshwater livestock and supplies to outfit the goldfish tank.

Care Guide

• Tank size: 20 to 30 gallons for the first oranda and about 10 to 15 more per additional fancy. They grow large and produce serious waste, so err on the big side.
• Water parameters: 65 to 75°F, pH 7.0 to 8.0. No heater needed in most homes; stable, well-oxygenated water matters more than warmth.
• Filtration and maintenance: goldfish are messy. Overfilter by a size and keep up weekly water changes; the wen and finnage develop best in consistently clean water.
• Feeding: omnivore. Sinking gel food like Repashy Super Gold or semi-floating goldfish pellets reduce air gulping, which helps prevent buoyancy trouble in round-bodied fancies. Add blanched veggies for fiber.
• Decor: smooth everything. Round gravel or sand, no sharp edges, gentle flow, and open swimming space suit their flowing fins and cap.
• Wen care: the red cap grows with age and genetics. A little food caught in the folds is normal; damage heals slowly, so keep tank mates gentle.

Specifications

Compatibility

Keep fancies with fancies. Round-bodied goldfish are slow, deliberate swimmers, and streamlined tank mates outrace them to every meal. Perfect company includes the Black Moor, Panda Butterfly, our Mixed Oranda assortment, and other ranchus and ryukins. Skip single-tail speedsters like comets in the same tank (they belong in ponds and bigger setups), avoid fin nippers entirely, and remember goldfish will eventually eat anything mouth-sized, including dwarf shrimp.

Recommended Foods & Supplies

• Repashy Super Gold gel food, the fancy goldfish staple
• Xtreme Goldfish Pellets semi-floating daily feed
• API Goldfish Pellets

FAQ

Will the red cap get bigger?
Yes. The wen develops over the first few years and keeps thickening with age. Good genetics, clean water, and protein-rich food all feed the cap; our imported line was selected for strong, even red hoods.

Do orandas need a heater?
Usually not. They are true coldwater fish, happiest in the 65 to 75°F range. What they do need is oxygen, filtration, and space.

Why do fancy goldfish get buoyancy problems?
Their compact bodies squeeze the swim bladder, and gulping air at the surface makes it worse. Sinking gel foods and pellets, plus fiber like blanched peas, prevent most floaty-belly episodes.

Can it live in a bowl?
No. A grown oranda is a large, long-lived fish that needs real filtration and swimming room. Give it a proper tank and it can be with you for over a decade.