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Freshwater fish

Ryukin Goldfish

Ryukin Goldfish

Regular price 26.79
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Ryukin Goldfish have similar bodies to Oranda Goldfish, but do not display the distinctive head patch. AquariumFish.com will do its best to accommodate color requests.

Quick Facts

Scientific Name Carassius auratus
Origin Japan (developed from Chinese fantails)
Care Level Easy, good for beginners
Temperament Peaceful, active
Adult Size Up to 8"
Lifespan 10–15 years, often longer with good care
Diet Omnivore
Water Temperature 65–75°F (no heater needed in most homes)
pH 7.0–8.0
Minimum Tank Size 20 gallons for one, plus 10 gallons for each extra goldfish

Care Guide

Tank setup: Ryukins produce a lot of waste, so give them plenty of room and a strong filter. Change 25–30% of the water every week.

Feeding: Feed small amounts once or twice a day, only as much as they eat in about two minutes. Mix a quality sinking pellet or flake with frozen or live foods like brine shrimp and bloodworms, plus blanched peas or other vegetables now and then.

Tankmates: Keep them with other fancy goldfish of similar size and speed. Avoid fast single-tail goldfish like comets and shubunkins, which will outcompete them for food. Also avoid tropical fish, which need warmer water, and fin-nippers.

Ponds: Ryukins can live in ponds in mild climates, but they are less cold-hardy than comets and shubunkins. Bring them indoors where winters are harsh, and keep them away from fast, aggressive pond fish.

Good to know: Ryukins are livelier than most fancy goldfish, so they can outcompete very slow types like telescopes and bubble eyes at feeding time.

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