Goldfish · Carassius
Goldfish
Carassius auratus · Domesticated in China from wild carp
Photo: IssamBarhoumi, CC BY-SA 4.0, via Wikimedia Commons
At a glance
Water temperature
10–24 °C 50–75 °F
pH
7–8 hard, alkaline water
Adult size
20 cm 7.9 in
Swims
Mid-water and bottom mostly in open water
Keep together
2 or more a shoal feels safe
Current
Calm still or slow water
Food
Eats most foods
Temperament
Peaceful
≈ Every value here is an estimate from typical hobby ranges. We're checking them against sources.
Where it comes from
Home water
Domesticated in China from wild carp
Lives in pond habitat.
Shaded: the countries it comes from. Map: Natural Earth.
Tank mates
Checked against a roomy 300 L planted tank with low flow and plenty of caves. Your own tank may change the answer: try it in Your tanks.
Good together
-
Red lizard whiptail L010a
Plecos · 12 cm · bottom -
Blue-eye lemon bristlenose L144
Plecos · 12 cm · bottom -
Amano shrimp
Shrimp & snails · 5 cm · bottom -
Bolivian ram
Cichlids · 8 cm · bottom -
Bronze corydoras
Corydoras · 7 cm · bottom -
Butterfly hillstream loach
Loaches · 8 cm · bottom -
Celestial pearl danio
Rasboras & danios · 2.5 cm · mid-water -
Cherry shrimp
Shrimp & snails · 2.5 cm · bottom
Keep apart
-
Need different temperatures and want fast, strong current
Angelicus L136Big white spot L142Blue phantom L128Colombian zebra L129
-
Need different temperatures
-
Want fast, strong current
In the hobby
In stock now
Not in stock at any store we track.
Tanks with this fish
From keepers
Already too big for this tank.
Questions keepers ask
How big does a Goldfish get?
About 20 cm (7.9 in) as an adult.
What temperature does a Goldfish need?
10–24 °C (50–75 °F).
What pH does a Goldfish need?
pH 7–8.
Does a Goldfish need to be kept in a group?
Yes. Keep at least 2.
Is the Goldfish aggressive?
No. It is peaceful with fish that suit the same water.
What does a Goldfish eat?
It eats most foods: flakes, small pellets and frozen foods.
Where does the Goldfish come from?
Domesticated in China from wild carp.
What fish can live with a Goldfish?
Good tank mates include Red lizard whiptail (L010a), Blue-eye lemon bristlenose (L144), Amano shrimp, Bolivian ram, Bronze corydoras.
All the numbers
| Temperature min (°C) | 10 | Estimate |
|---|---|---|
| Temperature max (°C) | 24 | Estimate |
| pH min | 7 | Estimate |
| pH max | 8 | Estimate |
| Adult size (cm) | 20 | Estimate |
| Flow | Low | Estimate |
| Habitat | pond | Estimate |
| Smallest happy group | 2 | Estimate |
| Temperament | Peaceful | Estimate |
| Diet | Omnivore | Estimate |
| Typical price min (CAD) | 2 | Estimate |
| Typical price max (CAD) | 30 | Estimate |
Some values are estimates from typical hobby ranges and haven't been checked against a source yet.