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• n  freshwater fish of Central America having a long swordlike tail; popular aquarium fish

• About five years ago, when the writer was 17, he did this twice, once on a guppy, once on a swordtail.
• About five years ago, when the writer was 17, he did this twice, once on a guppy, once on a swordtail.

• helleri
• topminnow
• Xyphophorus helleri