Molly Fish and Similar Species
Poecilia sp.
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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 than mollies, typically reaching 3-6 cm. Males have much more elaborate, flowing caudal and dorsal fins, and a more slender body shape. Guppies are almost exclusively freshwater, while many mollies prefer or tolerate brackish conditions.
Platy
Xiphophorus maculatus
Key differences: Platies are typically more robust and less elongated than mollies, with a more rounded body. They generally have a shorter dorsal fin than even short-finned mollies. Platies are also livebearers but belong to a different genus.
Swordtail
Xiphophorus hellerii
Key differences: Male swordtails are easily distinguished by the elongated lower ray of their caudal fin, forming a 'sword.' They are generally larger and more elongated than mollies. Like platies, they are livebearers but in a different genus.
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