A beginner-friendly fish guide

Fancy Goldfish

Fancy Goldfish

Carassius auratus (fancy forms)

Gentle temperament; can be kept alone or in a group. Check the planner before choosing tank mates.

Beginner level 3/5

A good environment

Recommended temperature
18 ~ 21°C
Recommended pH
6.8 ~ 7.8
Preferred water hardness
Medium hardness
Minimum aquarium
76L or more

Reference sources list a wider range of 10~21°C and pH 6.5~8.0. The planner uses the narrower range above as a safer starting point for beginners.

At a glance

Group
Goldfish
Average adult size
about 20 cm (large)
Minimum tank length
about 75 cm
Activity level
Moderate
Waste level
Very high
Lid recommended
Yes
Mature tank preferred
Not required

Temperament & group size

Gentle temperament; Can be kept alone or in a group.

Usually swims in the middle & bottom.

Tank-mate notes

Adult shrimp may be attacked; take care with shrimp tank mates.

Baby shrimp may be eaten. A separate breeding tank is safer.

Check each combination carefully, especially when size or temperament differs.

Add Fancy Goldfish to my aquarium

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Frequently asked questions

How big does Fancy Goldfish get, and what tank size does it need?

Adults average about 20 cm, a large species. The planner recommends an aquarium of at least 76 L and about 75 cm long.

What water temperature and pH does Fancy Goldfish need?

The planner range is 18~21°C and pH 6.8~7.8, with medium hardness. Reference sources list a wider range of 10~21°C and pH 6.5~8.0. The planner uses the narrower range above as a safer starting point for beginners.

How many Fancy Goldfish should be kept together?

Can be kept alone or in a group. Temperament is gentle.

Can Fancy Goldfish live with shrimp?

Adult shrimp: not recommended. Baby shrimp: not recommended.

Is Fancy Goldfish a good fish for beginners?

Beginner level 3/5. A lid is recommended. Activity: moderate; waste: very high.