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Goal #1

To create a safe and healthy environment for the Calico Ryukin Goldfish to grow and thrive.

Goal#2

To design an aquarium setup that supports multiple goldfish and reduces stress.

Goal#3

To maintain proper water quality, diet, and space to prevent common health problems.

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Common Name: Calico Ryukin Goldfish

Scientific Name: Carassius auratus

Description: The Calico Ryukin Goldfish is a fancy goldfish variety known for its rounded body, distinctive hump behind the head, and long flowing fins. Their colors are unique, with white bodies patterned by red, orange, and black spots, giving each individual fish a one of a kind appearance.

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1. What fish does your fish typically get along with.

Ryukin Goldfish are known as community fish so they do their best with other goldfish or similarly sized peaceful freshwater fish.

Compatible with: Oranda Goldfish, Koi Fish

2. Is your fish aggressive, semi-aggressive, passive, or a community type of fish?

Ryukin Goldfish are passive and also community type fish.

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This is a Oranda Goldfish, they are compatible with Ryukin Goldfish

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This is a Koi Fish, they are compatible with Ryukin Goldfish

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1. Tell me about the water that your fish lives in. If it is fresh or saltwater.

My fish lives in freshwater.

2. What are some things that you need to know about this type of water?

Three facts I found out about freshwater is that always dechlorinate tap water before adding it into the tank, maintain stable water temperature and pH levels, ensure proper filtration and regular water changes to remove waste and to maintain good water quality.

3. How much space does that fish usually have in its natural environment?

Ryukin Goldfish usually live in ponds in a natural environment.

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I am planning on getting some plastic plants or maybe silk plants, and I might purchase a house or cave for my fish to go into.

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1. What type of substrate are you planning on going with?

I am planning on going with gravel, maybe slightly larger gravels.

2. If you plan on purchasing a specific type of substrate what would that cost?

Costs $15-25 for a medium, might not need to buy.

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Cost $

Silk/plastic plants- $5-15

Fish houses decorations- $10-20

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1. What is tank lighting used for/its purpose?

It provides a day/night cycle, helps fish activity, and supports live plants if used.

2. Do you need tank lighting?

I can have tank lighting, but they do not require intense lighting.

3. How often should you leave the light on?

If I get a light it need to be kept on for 8-10 hours a day.

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1. What is the purpose of a hood cover/what does it do?

It prevents fish from jumping out, reduces evaporation, keeps dust/debris out of the water.

2. Do you need a hood cover?

Yes, I will need a hood cover.

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1. What is the temperature of your fish’s natural environment?

Ryukin's natural temperature in the environment is between 65–72°F (18–22°C).

2. Do you think you will need a water heater?

We will not need a heater because it does not get really cold in the winter, so room temperature water will be good for the fish.

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What type of filter do you think your tank/this fish will need?

They need a canister filter or hang-on-back filter. They need powerful filtration because of their heavy waste production.

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What size tank does this fish typically need to feel happy and not stressed?

They typically need a minimum of 20 gallons for one Calico Ryukin Goldfish and add 10 gallons for any additional goldfish added.

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1. How does your fish get air?

Goldfish breathe dissolved oxygen through gills

2. Is there anything specific you need to add to your tank for them to get air?

Can add an air pump or bubbler to keep the oxygen levels high.

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I plan to give it a big enough tank with a good filter since goldfish make a lot of waste. Instead of live plants, I will use fake ones and decorations so they don’t get uprooted. I’ll also add an air pump and hood cover to keep the tank safe and healthy. Since they like cooler water, I won’t need a heater, but the normal classroom lighting should be sustainable for the goldfish. This setup will keep the fish comfortable and allow it to grow properly.

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“Ryukin Goldfish, Calico.” LiveAquaria, www.liveaquaria.com/product/1930/?pcatid=1930. Accessed 19 Aug. 2025.

“Ryukin Goldfish Care Guide.” Fishkeeping World, 16 Sept. 2019, fishkeepingworld.com/ryukin-goldfish. Accessed 19 Aug. 2025.