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female Mosquitofish in front of white background
Butterfly.
Photo of Golden sweeper, a juvenile saltwater fish, against a black background.
The three-spined stickleback (Gasterosteus aculeatus)
A small perch, in side view
Pacific herring swimming in the aquarium
Three-spined stickleback, Gasterosteus aculeatus, isolated on white
Rainbow shark catfish Epalzeorhynchos frenatum aquarium fish isolated on white
Fish Close-Up
Photo of Flathead grey mullet, a juvenile saltwater fish, against a black background.
Dwarf cichlid male of Apistogramma Panduro
Chub, leuciscus cephalus
Channa Orna Fish In Aquarium
Fresh raw tropical flying fish isolated on white background
Sea life Gavun ( lat.  Atherina hepsetus ) fish Underwater  Mediterranean sea Scuba diver point of view
black and white fish followed by offspring
A fish The three-spined stickleback (Gasterosteus aculeatus) on the background of a 5 mm measurement grid. Ichthyology research.
Photo of Blackhead seabream, a juvenile saltwater fish, against a black background.
Painted Comber, small seabass grouper fish family Serranus Scriba, of Serranidae family from Mediterranean sea on white wood background
Harfan or betok is the name of a type of fresh and brackish water fish, its entire body is black to pale green with a black background
My home fish tank
Small white fish in Thailand Asia
Purple Queen Anthias, Pseudanthias tuka or Yellowstriped Fairy Basslet is a schooling fish is native to Mauritius to Palau, and Southern Japan
Fish Of India, Backwater Kerala. Goby fishes (Gobius). Freshwater gobies and fish living in estuaries
Pseudotropheus johannii or the bluegray mbuna. Isolated in black
spotted blue eyed rainbow fish Pseudomugil gertrudae aquarium fish Gertrude's Blue-Eye
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.
Gambusia is a large genus of fish in family Poeciliidae.
Cichlidae
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