Molly Fish and Similar Species
Poecilia latipinna/ Poecilia sphenops
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Open the appSeveral fish can be confused with Molly Fish. Here are the key differences.
Species often confused with {name}
Guppy
Poecilia reticulata
Key differences: Guppies are generally smaller, have more elaborate and often more colorful caudal fins, and their dorsal fin is typically smaller and less prominent than even the Shortfin Molly. Guppies are exclusively freshwater, while mollies can tolerate brackish conditions.
Platy
Xiphophorus maculatus
Key differences: Platies have a more robust, stockier body shape and a more compressed caudal peduncle. While also livebearers, their finnage and body patterns differ. Platies typically have a more pointed snout and a less upward-facing mouth compared to mollies.
Swordtail
Xiphophorus hellerii
Key differences: Male swordtails are easily distinguished by the elongated lower ray of their caudal fin, forming a 'sword'. They are also generally larger and more elongated than mollies.
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