How to Care for Your Red Cap Oranda

Written by dannah swift
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How to Care for Your Red Cap Oranda
The red cap oranda is a type of goldfish. (gold fish with red cap image by Daria Miroshnikova from

The red cap oranda (Carassius auratus auratus) is a type of goldfish. Its body is covered in iridescent white scales, its tail is long, flowing and split, and its sports a fleshy red cap, or hood. They are slightly egg-shaped and generally more rounded than the average goldfish. Like goldfish, they are native to Asia, where they inhabit slow-moving and stagnant waters of rivers, lakes and ponds. These fish generally grow up to 6 or 7 inches long in captivity.

Skill level:

Things you need

  • 30-gallon tank with lid (or larger depending on the number of fish)
  • High-quality goldfish flake food
  • Freeze-dried brine shrimp or other treats
  • Tank decorations (rocks and plants)

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  1. 1

    Outfit a 30-gallon tank for your red cap oranda, as these fish need lots of oxygen and space.

  2. 2

    Line the tank bottom with a layer of gravel substrate.

  3. 3

    Provide a system for the tank that will constantly filter the water.

  4. 4

    Change up to one-third of the water once a week.

  5. 5

    Provide shelter in the way of tank decorations and plants, such as smooth rocks, driftwood and plastic or live plants. Include a light in the lid of the tank if you choose live plants.

  6. 6

    Feed red cap orandas a high-quality flake food daily, one made specifically for goldfish. Follow the label instructions for dosage.

  7. 7

    Choose freeze-dried foods over fresh ones, which can transmit bacteria and parasites that can lead to infections.

Tips and warnings

  • The more space the fish has, the less likely it is to suffer from infections. According to, it is common for red cap orandas to develop infection from debris, bacteria and fungi that settle in the folds of their hoods.
  • Limit protein to 30 per cent of your red cap oranda’s diet.
  • Red cap orandas are omnivorous and will eat many different things: they like brine shrimp, bloodworms, Daphnia or tubifex worms as treats.

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