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Catfish, pseudacanthicus sp, Adult
Top view Wastewater treatment Oxygen filling by Paddle Wheel Aerator, Sewage treatment
European bullhead (Cottus gobio). Wildlife animal.
Fish skeleton on black background
Photo of Blackhead seabream, a juvenile saltwater fish, against a black background.
Pacific herring swimming in the aquarium
Three-spined stickleback, Gasterosteus aculeatus, isolated on white
The three-spined stickleback (Gasterosteus aculeatus)
Pattern of golden statues in Chinese temple for background.
Channa Orna Fish In Aquarium
Brazilian Flounder (Paralichthys brasiliensis) - Marine fish
Cleaner fish in an aquarium or a fish tank.
Green grass natural background with sneil. Top view
Pacific halibut swims in the aquarium
Side view Rhone streber, zingel asper, freshwater fish, isolated on white
Pseudotropheus johannii or the bluegray mbuna. Isolated in black
Plaice fish isolated on white background. Fresh flounder
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.
Beautiful black Orochi medaka
Painted Comber, small seabass grouper fish family Serranus Scriba, of Serranidae family from Mediterranean sea on white wood background
Observe the elegance of a corncrake as it gracefully navigates the shallow waters of its wetland habitat. With delicate steps, the corncrake moves through the tranquil waters, its presence adding to the serene beauty of the marshland. Captured in its natural environment, this photograph offers a glimpse into the peaceful world of wetland birds, highlighting the corncrake's graceful demeanor amidst the calm waters.
My home fish tank
A fish The three-spined stickleback (Gasterosteus aculeatus) on the background of a 5 mm measurement grid. Ichthyology research.
Channa maculata swimming in fish tank. An omnivorous fish that lives in the Mekong Delta is used to feed farmers during floods
Goby fish (Bathygobius fuscus)
Close up shot Channa Auranti snakehead fish in the aquarium
little  stickleback on white background
Perch (Perca fluviatilis)
Liparis - inhabitant of the Kara Sea. Fish lost the natural color after preservation
Cute pet fish
Free Images: "bestof:Naturalis Biodiversity Center - RMNH.MOL.269335 1 - Subuliniscus cornuorycis Connolly, 1923 - Subulinidae - Mollusc shell.jpeg artwork Dimensions artwork"
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