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These fish inhabit the waters of North America. Elongated body and long, dotted with rare and very sharp teeth mouth. It is found in freshwater ponds and reaches enormous size (2.5 - 3 meters) and weight over 100 kg.
Pacific herring swimming in the aquarium
Rainbow shark catfish Epalzeorhynchos frenatum aquarium fish isolated on white
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.
Pirarucu (Arapaima gigas) - Amazon River Basin fish
Channa maculata swimming in fish tank. An omnivorous fish that lives in the Mekong Delta is used to feed farmers during floods
exotic aquarium fish astranatous with close-up
closeup of a Redfish's Tail
Trichopodus pectoralis,Colorful freshwater fish and food that tastes good
Red tailed catfish
River fish living in clean water
Aquarium tropical fish: otocinclus
A Medium School / Shoal of Freshwater Warpaint Shiner River Minnow Fish (Luxilus Coccogenis) Together in a Naturalistic Aquascape Environment with Jungle Val (Vallisneria Americana) and Rocks in the Background.
Pacific halibut swims in the aquarium
beautiful photo of auranti channa fish
Cute pet fish
Skeleton side look macro closeup photography of the rare \
Indonesian snakehead,Small shield snakehead
The American scalefish, or lepidosiren Lepidosiren paradoxa is a lungfish, the only species of the genus scalefish and the family scalefish among aquatic vegetation
a guppy fish, Poecilia reticulata, in an aquarium
Aquatic (fresh water) nematode living in pond water among cyanobacteria. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Large Pacu Freshwater Fish in Aquarium Tank
My home fish tank
Otocinclus affinis in aquarium - one of the smallest known suckermouth catfish, often called a 'dwarf oto'
Canary rockfish, Sebastes pinniger, is a rockfish of the Pacific coast, aquarium, Seward, Alaska
Photo taken off Mayor Island BOP New Zealand.
Tropical fish swimming in the aquarium
A musky (muskellunge), Esox masquinongy, in bar phased coloration is photographed underwater at night in a vegetation bed in a northern Wisconsin lake.
Koi and goldfish photographed in motion in a garden pond
Free Images: "bestof:Prototroctes oxyrhynchus.jpg en New Zealand �s only extinct freshwater fish is the grayling Prototroctes oxyrhynchus This specimen was illustrated from a catch"
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