Do goldfish need light?

Silhouette of a cartoon goldfish with a torch

Do goldfish need light? Well, how would you like to be kept in the dark?!

Like most animals, goldfish would not be healthy if permanently kept in dark conditions.

Unlike some fish that live deep in the sea, wild goldfish live in lakes and rivers. These relatively shallow waters are often illuminated by quite bright daylight. Therefore, the lighting conditions in your aquarium should replicate this natural environment as closely as possible.

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