Fancy goldfish size: how big does it get?

Adults reach about 18 cm. The largest on record measured 48 cm (total length). Record sizes among the 137 Cyprinidae species on LumaReef: 1.3 cm (Strawberry Rasbora) to 200 cm (Yellowcheek).

Fancy goldfish tank size: what is the minimum?

A tank at least 90 cm long. In LumaReef that is the Standard tank or larger.

Fancy goldfish water parameters: what does it need?

Temperature 18–22 °C, pH 7.0–8.2, hardness 8–20 °dGH. Cooler than most Cyprinidae on LumaReef (20–26 °C).

Fancy goldfish tank mates: what can it live with?

It gets along with 8 of the 99 freshwater species in the catalogue, such as Gold barb, Zebra danio, and Odessa barb.

Fancy goldfish and plants: is it plant safe?

No, it may eat or uproot plants.

Fancy goldfish depth: how deep does it live?

In the wild, 0 to 20 m down. Deeper than most Cyprinidae on LumaReef (3–10 m).

FreshwaterIn the market120 coinsCommon

Fancy goldfish

Carassius auratus

It wobbles along on a round body and never stops stirring the bottom.

The Fancy goldfish (Carassius auratus) is a subtropical freshwater fish of the family Cyprinidae. It swims in midwater close to the bottom, between 0 and 20 m deep. Adults grow to about 18 cm; the largest on record measured 48 cm (total length). In the aquarium it needs a tank at least 90 cm long and water at 18–22 °C.

Size: 18 cm
Smallest tank: 90 cm
Temperature: 18–22 °C
Care: Moderate

In the aquarium

Temperature18–22 °C

pH7.0–8.2

Hardness8–20 °dGH

Temperament: Peaceful
Diet: Omnivore
Activity: Moderate
Water layer: Mid water
Group: Happiest in a group of 2 or more
Plants: Eats plants

These values are compiled from real species data, and the LumaReef simulation is built to keep them true to life.

Which tank it fits

Nano60 cm · 65 litresToo small
Standard90 cm · 180 litres5 of them
Wide120 cm · 300 litres8 of them
Living room180 cm · 650 litres18 of them
Showcase250 cm · 1,200 litres34 of them
Gallery300 cm · 1,440 litres41 of them

Who it lives with

Gets along8 species

Caution13 species

Narrow shared temperature range

Not together78 species

Water temperatures do not overlap

These two do not get along

Tiger barb

Aggressive with peaceful

Paradise fish

In the wild

Water type: Freshwater
Climate zone: Subtropical
Habitat: Midwater, close to the bottom
Largest on record: 48 cmtotal length
Aquarium trade: Very common

Depth

surface

0 m20 m

Conservation status

Classification

OrderCypriniformes
FamilyCyprinidae
GenusCarassius
SpeciesCarassius auratus

In other languages

English: Goldfish
German: Goldfisch
Spanish: Carpa asiática dorada
French: Poisson rouge
Italian: Pesce rosso
Dutch: Goudvis
Turkish: Japon Havuz Balığı
Russian: Золотая рыбка
Japanese: キンギョ
Chinese: 鯽魚 (金魚)

Quick answers

Fancy goldfish size: how big does it get?: Adults reach about 18 cm. The largest on record measured 48 cm (total length). Record sizes among the 137 Cyprinidae species on LumaReef: 1.3 cm (Strawberry Rasbora) to 200 cm (Yellowcheek).
Fancy goldfish tank size: what is the minimum?: A tank at least 90 cm long. In LumaReef that is the Standard tank or larger.
Fancy goldfish water parameters: what does it need?: Temperature 18–22 °C, pH 7.0–8.2, hardness 8–20 °dGH. Cooler than most Cyprinidae on LumaReef (20–26 °C).
Fancy goldfish tank mates: what can it live with?: It gets along with 8 of the 99 freshwater species in the catalogue, such as Gold barb, Zebra danio, and Odessa barb.
Fancy goldfish: alone or in a group?: Keep at least 2 together.
Fancy goldfish and plants: is it plant safe?: No, it may eat or uproot plants.
Fancy goldfish depth: how deep does it live?: In the wild, 0 to 20 m down. Deeper than most Cyprinidae on LumaReef (3–10 m).