Paradise fish
Macropodus opercularis
This species exhibits sexual dimorphism. Males are larger than females and possess elongated filaments on their …
Freshwater fish spend part or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%.
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Macropodus opercularis
This species exhibits sexual dimorphism. Males are larger than females and possess elongated filaments on their …
Ptychocheilus oregonensis
The mouth of the northern squawfish is terminal and large, extending backward beyond the anterior margin …