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The alligator gar, Atractosteus spatula, is a primitive ray-finned fish.
View from above of a trout suspended in a stream. Small stream in Sequoia National Park, California.
Otocinclus affinis in aquarium - one of the smallest known suckermouth catfish, often called a 'dwarf oto'
Red tailed catfish
Roach, Rutilus rutilus, single fish in water
Shot of a corydoras panda fish, it is cleaning the ground of tha aquarium. Shot with high megapixel DSLR camera, Canon 5DSR
Atlantic Cod - Gadus morhua
Channa maculata swimming in fish tank. An omnivorous fish that lives in the Mekong Delta is used to feed farmers during floods
Pirarucu (Arapaima gigas) - Amazon River Basin fish
Carp (Cyprinus carpio)
Golden Ancistrus pleco catfish Male albino Bristle-nose tropical freshwater aquarium fish
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.
European bitterling (Rhodeus amarus) wild fish swimming underwater in natural environment on tranquil background. Netherlands,
Green water lotus floating on water
Electric eel
Cottus reinii at the bottom of the tank.
Aquatic (fresh water) nematode living in pond water among cyanobacteria. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Blue Pond is a tourist destination in Hokkaido.\nIt was bluer than I expected.
Colorful of ornamental fish, Malawi cichlid (Mbuna) in fish tank. Pseudotropheus is endemic to Lake Malawi. it is freshwater fish, an African cichlids in Cichlidae family.
Carp tail close-up isolated on white background
A closeup shot of a silver arowana (Osteoglossum bicirrhosum)
The Big Grass Carp is a herbivorous freshwater fish belonging to the family Cyprinidae and the only species of its biological genus Ctenopharyngodon
High angle closeup view of a small rock-pool with various colourful seaweeds on a rock platform on the beach on the south coast of NSW near Ulladulla
The rohu, rui, or roho labeo is a species of fish of the carp family, found in rivers in South Asia. Fish market display. raw, uncooked, whole and side view with leaves.
Transparent Waters of Plitvice Lakes National Park
A live snakehead fish isolated on white background
Aquarium tropical fish: otocinclus
Fresh alive Common Rudd redfin fish isolated on white background
Dry flat salt landscape at the Badwater Basin at Death Valley National Park, California, USA. Seen a hot summer day.
Free Images: "bestof:Percottus glenii 2009 G2.jpg en Chinese sleeper Amur sleeper Perccottus glenii - freshwater fish of Odontobutidae family Found in wild in Ukraine near Vinnitsa"
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