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Gambusia is a large genus of fish in family Poeciliidae. Gambusia contains over 40 species, most of which are principally found in freshwater habitats, though some species may also be found in brackish or saltwater habitats.
Perch (Perca fluviatilis)
Mirror carp (Cyprinus carpio carpio). Wild life animal.
Goldfish in the aquarium
Dragonfish
Tropical fish swimming through the open water over coral reef
Sunbleak or Belica freshwater fish (Leucaspius delineatus). It has an upward-turned mouth and a short lateral line which extends about seven to ten scales from the gill cover. Wildlife scene of nature in Europe.
Carp tail close-up isolated on white background
Siamese fighting fish or Betta fish isolated
The Arctic grayling (Thymallus arcticus) is a species of freshwater fish in the salmon family Salmonidae. T. arcticus is widespread throughout the Arctic and Pacific drainages in Canada, Alaska, and Siberia, as well as the upper Missouri River drainage in Montana.  Wyoming.
fish in an aquarium close-up
Carp (Cyprinus carpio)
Cory catfish Corydoras duplicareus tropical aquarium fish
Red tailed catfish
Roach fish. Big alive european roach isolated on white background
Fish swimming in a garden pond photographed from above with selective focus
Fisihng. Underwater
Koi are colored varieties of the common carp that are kept for decorative purposes in koi ponds or water gardens.
The Bumphead Parrotfish can be recognised by the distinct hump on the head of adults, its drab colouration, and large size. It is the largest of all the parrotfishes.
Large tropical fish swimming through the open ocean
Beautiful koi carp fishes swimming in a freshwater aquarium tank in Dharmapala Park, Galle.
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White Japanese killifish.
Arowana in aquarium, a favorite fish with long body, beautiful dragon shape colorful for decoration in the aquarium in rich family
Sturgeon fish swims in an aquarium.
Transparent Waters of Plitvice Lakes National Park
European bitterling (Rhodeus amarus) wild fish swimming underwater in natural environment on tranquil background. Netherlands,
Red snapper on white background
Costello tetra Hemigrammus hyanuary aquarium fish green neon
Tropical fish swimming in the aquarium
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