Freshwater

African jewelfish

Hemichromis bimaculatus

The body of the African jewelfish is elongated and tall, the sides are flat.

Amazon leaffish

Monocirrhus polyacanthus

The Amazon leaffish resembles dead yellow-brown leaves in color and body shape. On the tip of …

Black Molly

Poecilia sphenops

The Black Molly has an elongated body. Females tend to be more rounded in appearance. The …

Black tetra

Gymnocorymbus ternetzi

The black tetra has a flat, tall body.

Blotched upside-down catfish

Synodontis nigriventris

Body stocky, slightly flattened at the sides. Back more convex than abdomen, eyes large, mouth lower …

Blue leopard corydoras

Corydoras paleatus

The Blue Leopard Corydoras has a strongly curved back line and an almost flat abdomen. Its …

Bushymouth catfish

Ancistrus dolichopterus

The Bushymouth catfish has a flattened body that is completely covered in polygonal bony plates. Its …

Campylomormyrus curvirostris

Campylomormyrus curvirostris, gnathonemus curvirostris, campylomormyrus rhynchophorus.

The snout of Campylomormyrus curvirostris is highly elongated and curved downward like a trunk, with a …

Candiru

Vandellia cirrhosa

The candiru has an elongated body, a small head, and an abdomen that may appear swollen, …

Cardinal tetra

Paracheirodon axelrodi

The Cardinal tetra has an elongated body that is slightly flattened on the sides. The females …

Cascarudo

Callichthys callichthys

Cascarudo has an elongated, slightly flattened body covered with two rows of bony plates. It has …

Eastern mosquitofish

Gambusia holbrooki

The body of the Eastern mosquitofish is moderately elongated, not tall, and laterally compressed. It is …

Fahaka pufferfish

Tetraodon lineatus

The skin of the Fahaka pufferfish is scaleless, but the head and body are covered with …

Golden pencilfish

Nannostomus beckfordi

The genus name Nannostomus comes from the Latin nannus ("small") and the Greek stoma ("mouth"), referring …

Goldfish

Carassius auratus

The body of the goldfish is short and tall with a slightly angular shape. It is …

Green swordtail

Xiphophorus hellerii

Green swordtails have elongated, narrow bodies that are flattened on the sides. They also have large …

Guppy

Poecilia reticulata

Guppies exhibit pronounced sexual dimorphism, with males and females differing in size, shape, and colouration. Males …

Malabar danio

Devario malabaricus

The Malabar danio has a fusiform (spindle-shaped) body and is a larger, more robust relative of …

Mbu pufferfish

Tetraodon mbu

The Mbu pufferfish is the largest representative of the pufferfish family in the world. It is …

One-lined pencilfish

Nannostomus unifasciatus

The name unifasciatus comes from the Latin words uni ("one") and fasciatus ("banded"), meaning "one-banded." The …

Paradise fish

Macropodus opercularis

This species exhibits sexual dimorphism. Males are larger than females and possess elongated filaments on their …

Porous seasonal killifish

Cynolebias porosus

The Porous seasonal killifish has a fusiform (spindle-shaped) body that is laterally compressed. The snout is …

Pyrrhulina filamentosa

Pyrrhulina filamentosa

Pyrrhulina filamentosa has an elongated body with a large caudal fin, the upper lobe of which …

Russian bitterling

Acheilognathus asmussii

The Russian bitterling has a very characteristic appearance that distinguishes it from other members of the …