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FishFreshwater

Yucatan Molly

Poecilia velifera

AnimaliaChordataActinopterygii

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The largest molly species, native to Mexico's Yucatan Peninsula, with males developing an enormous sail-like dorsal fin that can rival their body height and displaying iridescent blue-green and orange coloration at maturity. It requires a larger tank (40+ gallons) than common mollies, prefers hard, alkaline water, and makes an impressive display fish when provided sufficient space.

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