The Gudgeon (Gobio gobio) is a freshwater fish in the Cyprinidae family. It is a cyprinid. 

The Gudgeon has a long, slender body with a flat, wide head. It is usually greenish-brown with silvery sides. It has a row of 6-12 faint black-grey blotches running lengthwise on the side of its body. Its underbelly is white. Its fins are greyish-white with a brownish tinge. The dorsal (back) fin is pale-brown with small, dark spots. It has a barbel at the corner of each side of its mouth. It has two rows of teeth.

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Koi Carp

The Koi Carp (Cyprinus rubrofuscus) is a freshwater fish in the Cyprinidae family of carp. Koi Carp are coloured varieties of the Amur Carp. It is a cyprinid fish.

The Koi Carp can be many colours, such as white, black, red, orange, yellow, blue, and cream. It is an oval-shaped fish with medium-to-large fins and tail. It has black eyes. It has short barbels on the corners of its mouth, like whiskers. 

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Siamese Flying Fox

The Siamese Flying Fox (Epalzeorhynchus kallopterus) is a freshwater fish in the Cyprinidae family. 

The Siamese Flying Fox has an elongated, cylindrical body with a brownish-black, horizontal band from its eye to its tail. It also has a thinner, golden-coloured line above and below the black line. It has white and black edges on its fins. Its mouth is slightly forward protruding with two pairs of small barbels (whisker-like structures). It has red eyes. 

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Caspian Shemaya

The Caspian Shemaya (Alburnus chalcoides) is a common and widespread freshwater cyprinid fish. It is also called the Danube Bleak.

The Caspian Shemaya is an elongated fish with no scales at its posterior end near its tail. It has 18-31 gills. Its long, thin teeth are curved inwards. It is metallic silver with a contrasting olive-green back. Its eyes are bright silver. The dorsal and caudal fins are greyish and its other fins are colourless to whitish.

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Red-Line Torpedo Barb

The Red-Line Torpedo Barb (Sahyadria denisonii) is an endangered cyprinid freshwater fish. It is also known as the Denison Barb.

The Red-Line Torpedo Barb has a silver torpedo-shaped body with a horizontal red line from its nose, through its eye, and to the middle of its body. Below the red line is a horizontal black line from its nose to its tail. There is also a red line on its dorsal fin (back fin) and two black spots on its tail.

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Redeye Labeo

The Redeye Labeo (Labeo cylindricus) is a species of freshwater fish from east Africa. It is a cyprinid.

The Redeye Labeo has a cylindrical yellow-green body, with a darker horizontal band along the length of its body. It darkens as it ages, with the colour turning olive-green. It has a protruding nose that has star-shaped tubercles (small lumps) on it. Its mouth is large and its lips are fleshy. Its eyes are red.

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