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A vivid blue crayfish, hardy and active, kept singly due to its aggression toward tankmates.

The well-known 'crawfish', a hardy burrowing species, invasive and farmed widely.

A large freshwater crayfish with a red claw edge, farmed for food and kept in aquaria.

A hardy Australian burrowing crayfish, variable in color, popular in large aquaria.

An albino-white color line of the red swamp crayfish, popular for its ghostly look.