RANCHU B GRADE (Carassius auratus) 3.5–4.5″

Beautiful B Grade Ranchu Goldfish for Canadian Aquariums

The Ranchu Goldfish (Carassius auratus) is widely regarded as the “King of Fancy Goldfish”, celebrated for its rounded body, smooth curved back, graceful swimming style, and distinctive wen (head growth). This B Grade 3.5–4.5-inch Ranchu is an excellent choice for hobbyists seeking a healthy, attractive Ranchu at an affordable price.

Although classified as B Grade, these Ranchu Goldfish are still healthy, active, and visually appealing. Minor cosmetic imperfections, such as less-developed wen growth, slight asymmetry, or pattern variations, distinguish them from higher-grade specimens, but they still make wonderful pets and display fish.

Monster Aquarium Canada proudly offers healthy B Grade Ranchu Goldfish with professional live fish shipping throughout Canada.

Why Choose a Ranchu Goldfish?

One of the World’s Most Popular Fancy Goldfish

Ranchu Goldfish are prized for their:

• Rounded egg-shaped body
• Distinctive wen (head growth)
• Smooth arched back without a dorsal fin
• Graceful swimming motion
• Calm and friendly temperament
• Long lifespan with proper care

Every Ranchu develops differently, making each fish unique.

Care Requirements

Aquarium Size

A minimum 30-gallon aquarium is recommended for one adult Ranchu Goldfish, with an additional 15–20 gallons for each additional fish.

Provide:

• High-quality biological filtration
• Gentle water flow
• Excellent oxygenation
• Regular partial water changes
• Plenty of open swimming space

Ranchus are best kept with other fancy goldfish due to their slower swimming speed.

Water Parameters

• Scientific Name: Carassius auratus
• Common Name: Ranchu Goldfish
• Grade: B Grade
• Available Size: 3.5–4.5 inches
• 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 fancy goldfish
• Lifespan: 10–20 years

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Feeding

A varied diet helps promote healthy growth and balanced wen development.

Daily Diet

• Premium sinking goldfish pellets
• Fancy goldfish gel food
• High-quality sinking granules

Supplemental Foods

• Bloodworms
• Brine shrimp
• Daphnia
• Shelled green peas
• Spinach
• Zucchini
• Duckweed
• Spirulina-based foods

Feed two to three small meals daily and remove uneaten food to maintain excellent water quality.

Ideal Aquarium Setup

Provide an environment designed specifically for fancy goldfish.

Recommended Features

• Aquarium of 30 gallons or larger
• Efficient biological filtration
• Smooth sand or fine gravel substrate
• Rounded decorations
• Gentle water movement
• Live or silk plants
• Regular water testing
• Weekly maintenance

Avoid strong currents, as Ranchus prefer calm water.

Compatible Tank Mates

Ranchu Goldfish are peaceful and thrive with:

• Ranchu Goldfish
• Oranda Goldfish
• Black Moor Goldfish
• Fantail Goldfish
• Pearlscale Goldfish
• Lionhead Goldfish

Avoid aggressive fish, tropical species, and fast-swimming single-tail goldfish.

Why Buy Ranchu Goldfish from Monster Aquarium Canada?

Healthy B Grade Ranchu

Every Ranchu Goldfish is carefully selected for excellent health, active behaviour, and strong body condition, making them an outstanding value for both beginner and experienced hobbyists.

Professional Live Fish Shipping Across Canada

Monster Aquarium Canada uses insulated packaging and professional shipping techniques to safely deliver live goldfish throughout Canada.

Trusted Canadian Aquarium Supplier

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

Frequently Asked Questions

1. What does B Grade mean?

B Grade Ranchu are healthy fish that may have minor cosmetic differences, such as less-developed wen growth or slight body asymmetry, while remaining excellent pets.

2. How large do Ranchu Goldfish grow?

With proper care, Ranchu Goldfish typically reach 6–8 inches (15–20 cm).

3. Can Ranchu Goldfish live with tropical fish?

No. Ranchus prefer cooler water and are best housed with other fancy goldfish.

4. What should I feed my Ranchu Goldfish?

Feed premium sinking pellets, gel foods, bloodworms, brine shrimp, daphnia, and fresh vegetables for optimal health.

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

Yes. Monster Aquarium Canada provides secure live fish shipping across Canada, helping ensure your Ranchu Goldfish arrives healthy and ready for its new aquarium.