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Orangespotted Sunfish reference image
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Orangespotted Sunfish

Lepomis humilis

Orangespotted Sunfish is a small, hardy lepomid of slow, warm freshwater. It is best known for its orange-and-blue spotting and aggressive feeding on tiny prey, especially in vegetated or muddy waters.

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Orangethroat Darter reference image
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Orangethroat Darter

Etheostoma spectabile

The Orangethroat Darter is a small North American stream fish known for the male’s vivid orange throat and breeding colors. It lives on clean riffles and gravel runs, where it picks tiny aquatic insects and other invertebrates from the bottom.

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Oriental Weatherfish reference image
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Oriental Weatherfish

Misgurnus anguillicaudatus

The Oriental Weatherfish is a slender, eel-like loach native to East Asia and widely introduced elsewhere. It thrives in quiet, muddy waters and is famous for tolerating low oxygen by gulping air and even wriggling into moist mud.

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Oscar reference image
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Oscar

Astronotus ocellatus

Oscar (Astronotus ocellatus) is a large South American cichlid popular in aquariums and sometimes targeted by anglers in warm freshwater. It is highly territorial, takes a wide range of prey, and often feeds aggressively near cover.

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Pearl Cichlid reference image
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Pearl Cichlid

Geophagus brasiliensis

Pearl Cichlid (Geophagus brasiliensis) is a South American cichlid known for its pearly blue-green spotting and sand-sifting feeding style. It is an adaptable freshwater fish that can become territorial, especially when breeding.

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Prussian Carp reference image
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Prussian Carp

Carassius gibelio

Prussian Carp is a hardy cyprinid closely related to goldfish and crucian carp, widely introduced outside its native Eurasian range. It tolerates poor water quality, reproduces successfully without males in many populations, and often becomes abundant in still waters.

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Pumpkinseed reference image
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Pumpkinseed

Lepomis gibbosus

Pumpkinseed is a small, colorful North American sunfish with a laterally compressed body and a red-edged opercular flap. It lives in warm, calm freshwater and often nests in colonies in shallow water.

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Rainbow Darter reference image
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Rainbow Darter

Etheostoma caeruleum

Rainbow Darter is a small, colorful North American darter that lives in clear, fast streams with gravel, riffles, and runs. Males show bright blue, orange, and red breeding colors; it is not a typical target species for anglers.

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Red Shiner reference image
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Red Shiner

Cyprinella lutrensis

Red Shiner is a small, colorful minnow native to central and southern North America and widely introduced elsewhere. It thrives in warm, often turbid streams and reservoirs, and males develop a bright red or orange body during spawning.

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Red-bellied Pacu reference image
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Red-bellied Pacu

Piaractus brachypomus

Red-bellied Pacu is a South American characin often kept in aquariums and sometimes released into warm waters outside its native range. It is an omnivorous, fruit- and seed-eating fish that can grow large and is occasionally mistaken for piranha despite its blunter teeth.

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Redbelly Piranha reference image
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Redbelly Piranha

Pygocentrus nattereri

Redbelly piranha (Pygocentrus nattereri) is a South American freshwater characiform known for its deep body, red belly, and powerful jaws. It schools in warm rivers, floodplains, and lakes, feeding opportunistically on fish, insects, crustaceans, and carrion.

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Redbreast Sunfish reference image
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Redbreast Sunfish

Lepomis auritus

Redbreast Sunfish is a colorful southeastern North American sunfish that favors clear, flowing water. It’s a common panfish and readily takes small natural baits and tiny lures near cover.

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