The common goldfish(Carassius auratus) is one of the most popular cold-water fish. Easy to keep and very sociable, they are ideal for family aquariums or small outdoor ponds.

Behaviour & maintenance

These fish are peaceful, gregarious and curious. It likes to live in groups (minimum 2 to 3 individuals) in a spacious aquarium of at least 60 L per fish. Avoid tanks that are too small, or fishballs, which are detrimental to the fish's well-being.

For more information on keeping goldfish, see our guide: Guide to keeping goldfish.

Diet

Goldfish are omnivores: they like flakes, pellets and fresh food. We recommend varying its food to maintain bright colours and good digestive health.
➤ Discover our selection of goldfish foods.

Water quality

• Ideal temperature: 18 - 24 °C
• pH: 6.8 - 7.5
• GH: 6 - 12 °dGH
• KH: 4 - 8 °KH
• Conductivity: 300 - 600 µS

Before introduction, treat the water with a suitable water conditioner to remove chlorine and heavy metals.

Decor & environment

This fish likes to dig in the ground: choose fine sand and robust aquatic plants such asAnubias orElodea.
Avoid plants that are too fragile and could be uprooted.

Maintenance sheet

Aquabota tip

Weekly maintenance of 20% water and a well-sized filter will ensure clear, healthy water.
Discover our range of aquarium filters for goldfish.