University of Florida


Koi are popular fish for ponds and water gardens. Related to common carp, koi are hardy and can live for decades, although light-colored fish are often preyed upon by birds. They do require a certain temperature water, so Florida water gardens must be deep, in order to keep the fish cool—this also prevents predatory birds from being able to stand in the pond and hunt. Some koi experts recommend a pond depth of at least six feet.


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