BLACK RANCHU GOLDFISH (Carassius auratus) FOR SALE CANADA | PREMIUM FANCY GOLDFISH

Premium Black Ranchu Goldfish for Canadian Aquariums

The Black Ranchu Goldfish (Carassius auratus) is a rare and highly sought-after fancy goldfish variety, admired for its deep black coloration, rounded body, smooth dorsal-less back, and well-developed wen (head growth). Often referred to as the “King of Goldfish,” the Ranchu is prized for its graceful swimming style and distinctive appearance.

The Black Ranchu combines the elegant body shape of the traditional Ranchu with a dramatic solid black colour, making it a standout specimen in any freshwater aquarium. With proper care, these fish develop a fuller body, more pronounced wen, and exceptional ornamental beauty.

Monster Aquarium Canada proudly offers healthy Black Ranchu Goldfish with professional live fish shipping across Canada.

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Why Choose a Black Ranchu Goldfish?

A Rare and Elegant Fancy Goldfish

Black Ranchu Goldfish are prized for their:

• Rich velvet-black coloration
• Smooth dorsal-less back
• Rounded body shape
• Developing wen (head growth)
• Graceful swimming posture
• Peaceful temperament
• Excellent collector value

Each fish has its own unique body shape and subtle colour variations, making every specimen one of a kind.

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Care Requirements

Aquarium Size

A minimum 30-gallon aquarium is recommended for one Black Ranchu Goldfish, with an additional 15–20 gallons for each extra fancy goldfish.

For optimal health, provide:

• High-quality biological filtration
• Gentle water movement
• Stable water parameters
• Excellent oxygenation
• Weekly partial water changes
• Plenty of open swimming space

Ranchus thrive in dedicated fancy goldfish aquariums with similarly slow-swimming companions.

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Water Parameters

• Scientific Name: Carassius auratus
• Common Name: Black Ranchu Goldfish
• Adult Size: 6–8 inches (15–20 cm)
• Temperature: 18–24°C (65–75°F)
• pH: 6.8–8.0
• Water Hardness: Moderate
• Care Level: Beginner to Intermediate
• Temperament: Peaceful
• Diet: Omnivore
• Origin: Selectively bred ornamental goldfish
• Lifespan: 10–20 years

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Feeding Your Black Ranchu Goldfish

A premium diet helps maintain healthy growth, strong immunity, and excellent wen development.

Recommended Foods

• Premium sinking goldfish pellets
• Fancy goldfish gel food
• High-quality sinking granules
• Frozen bloodworms
• Brine shrimp
• Daphnia
• Spirulina-based foods
• Shelled green peas
• Blanched spinach
• Zucchini

Feed 2–3 small meals daily to reduce the risk of digestive issues common in rounded fancy goldfish.

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Ideal Aquarium Setup

Create an environment that supports healthy growth and long-term well-being.

Recommended Features

• Aquarium of at least 30 gallons
• Fine sand or smooth gravel substrate
• Rounded decorations
• Live or silk plants
• Efficient biological filtration
• Gentle water flow
• Stable water chemistry
• Regular maintenance schedule

Avoid sharp ornaments that could damage the Ranchu’s delicate wen or fins.

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Compatible Tank Mates

Black Ranchu Goldfish do well with other peaceful fancy goldfish, including:

• Oranda Goldfish
• Lionhead Goldfish
• Fantail Goldfish
• Ryukin Goldfish
• Black Moor Goldfish
• Pearlscale Goldfish
• Bubble Eye Goldfish

Avoid:

• Aggressive fish
• Fin-nipping species
• Fast-swimming common or comet goldfish
• Tropical fish requiring warmer water

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Why Buy Black Ranchu Goldfish from Monster Aquarium Canada?

Premium Healthy Specimens

Every Black Ranchu Goldfish is carefully selected for:

• Excellent body conformation
• Healthy wen development
• Rich black coloration
• Strong swimming ability
• Outstanding overall health

Professional Live Fish Shipping Across Canada

Monster Aquarium Canada uses professional live fish shipping methods with insulated packaging to help ensure your Black Ranchu Goldfish arrives healthy and stress-free anywhere in Canada.

Canada’s Trusted Aquarium Supplier

Monster Aquarium Canada proudly supplies premium goldfish, koi, tropical fish, monster fish, aquarium supplies, premium fish foods, aquatic medications, and accessories with reliable nationwide shipping.

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Frequently Asked Questions

1. What makes the Black Ranchu Goldfish unique?

The Black Ranchu combines the classic Ranchu body shape with a rare solid black coloration, creating one of the most elegant and collectible fancy goldfish varieties.

2. How large do Black Ranchu Goldfish grow?

With proper care, Black Ranchus typically reach 6–8 inches (15–20 cm) and can live for 10–20 years.

3. Will the black coloration remain permanent?

Many Black Ranchus retain their dark coloration, but some may gradually develop bronze or orange tones as they mature due to genetics and environmental conditions.

4. Can Black Ranchus live with Orandas and Lionheads?

Yes. Black Ranchus are peaceful and thrive with other slow-swimming fancy goldfish that have similar care requirements.

5. Does Monster Aquarium Canada ship Black Ranchu Goldfish across Canada?

Yes. Monster Aquarium Canada offers professional live fish shipping across Canada, ensuring your Black Ranchu Goldfish arrives healthy and ready for its new aquarium.