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Red & White Ryukin Goldfish 5cm

Red & White Ryukin Goldfish 5cm

Red & White Ryukin is a stunning, high-backed fancy goldfish known for its deep body shape, graceful fins, and vibrant coloration. They are hardy, personable, and highly sought after in both beginner and advanced goldfish setups.


Appearance

  • Body Shape: Deep, rounded body with a pronounced dorsal hump behind the head (signature Ryukin trait)
  • Fins: Long, flowing fins; may be short-tail or long-tail variety
  • Coloration: Crisp white base with vivid red patches — patterns vary fish to fish
  • Adult Size: 6–10 inches typically; some can grow larger in large aquariums or ponds
  • Temperament: Peaceful but food-competitive; best with other fancies

Care Requirements

Tank Size

  • Minimum: 30 gallons for one
  • Add: +20 gallons per additional Ryukin
  • Larger tanks greatly improve growth, longevity, and water quality.

Water Parameters

Ryukins are hardy but benefit from stable, clean water:

  • Temperature: 18–22°C (65–72°F)
  • pH: 7.0–8.0
  • Hardness: Moderate–hard
  • Ammonia/Nitrite: Always 0
  • Nitrates: Preferably < 40 ppm

They are cold-water tolerant but should not be mixed with fast, slim-bodied goldfish like comets or shubunkins.


Filtration & Flow

  • Require strong biofiltration due to heavy waste output
  • Prefer moderate flow — too much current can stress long-finned varieties
  • Double filtration is recommended (e.g., sponge + hang-on-back or canister)

Diet

Ryukins are enthusiastic eaters:

  • Staple: High-quality sinking goldfish pellets
  • Additional: Gel foods, leafy greens (spinach, kale), blanched peas, bloodworms, daphnia
  • Avoid: Excess floating pellets (risk of swim bladder issues)

Feed small meals throughout the day rather than one large feeding.


Tank Mates

Appropriate tank mates:

  • Other fancy goldfish (Oranda, Ranchu, Fantail, Pearlscale, etc.)
  • Do not mix with slim-bodied or fast-swimming goldfish

Common Issues

  • Swim bladder sensitivity (avoid overfeeding & floating foods)
  • Fin tears in tanks with sharp décor
  • Poor water quality due to high waste

Fun Facts

  • Ryukins originated in Japan, believed to have come from the Ryukyu Islands (modern-day Okinawa).
  • Their dorsal hump becomes more pronounced as they grow.
  • They recognize their keepers and can be trained to hand-feed.


$36.54
Red & White Ryukin Goldfish 5cm
$36.54

Product Information

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Description

Red & White Ryukin is a stunning, high-backed fancy goldfish known for its deep body shape, graceful fins, and vibrant coloration. They are hardy, personable, and highly sought after in both beginner and advanced goldfish setups.


Appearance

  • Body Shape: Deep, rounded body with a pronounced dorsal hump behind the head (signature Ryukin trait)
  • Fins: Long, flowing fins; may be short-tail or long-tail variety
  • Coloration: Crisp white base with vivid red patches — patterns vary fish to fish
  • Adult Size: 6–10 inches typically; some can grow larger in large aquariums or ponds
  • Temperament: Peaceful but food-competitive; best with other fancies

Care Requirements

Tank Size

  • Minimum: 30 gallons for one
  • Add: +20 gallons per additional Ryukin
  • Larger tanks greatly improve growth, longevity, and water quality.

Water Parameters

Ryukins are hardy but benefit from stable, clean water:

  • Temperature: 18–22°C (65–72°F)
  • pH: 7.0–8.0
  • Hardness: Moderate–hard
  • Ammonia/Nitrite: Always 0
  • Nitrates: Preferably < 40 ppm

They are cold-water tolerant but should not be mixed with fast, slim-bodied goldfish like comets or shubunkins.


Filtration & Flow

  • Require strong biofiltration due to heavy waste output
  • Prefer moderate flow — too much current can stress long-finned varieties
  • Double filtration is recommended (e.g., sponge + hang-on-back or canister)

Diet

Ryukins are enthusiastic eaters:

  • Staple: High-quality sinking goldfish pellets
  • Additional: Gel foods, leafy greens (spinach, kale), blanched peas, bloodworms, daphnia
  • Avoid: Excess floating pellets (risk of swim bladder issues)

Feed small meals throughout the day rather than one large feeding.


Tank Mates

Appropriate tank mates:

  • Other fancy goldfish (Oranda, Ranchu, Fantail, Pearlscale, etc.)
  • Do not mix with slim-bodied or fast-swimming goldfish

Common Issues

  • Swim bladder sensitivity (avoid overfeeding & floating foods)
  • Fin tears in tanks with sharp décor
  • Poor water quality due to high waste

Fun Facts

  • Ryukins originated in Japan, believed to have come from the Ryukyu Islands (modern-day Okinawa).
  • Their dorsal hump becomes more pronounced as they grow.
  • They recognize their keepers and can be trained to hand-feed.