Here's a quick description of some coloring options for Guppy fish:
Body Coloring:
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Black: "Tuxedo" or half-black coloring. (See Raider under My Guppies for another example)
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Snakeskin: An attractive "chain-link" pattern. (on the body)
Cobra: A similar rosette pattern with verticle bars. (on the body)
Tail / Finnage Coloring:
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Solid: Being of one simple color, such as red, blue or orange. (on the tail)
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Mosaic: Sparatically connected-dot pattern. (on the tail)
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Leopard: Random, large spots. (on the tail)
Grass: Small dots, resembling a grass-seed pattern. (on the tail)
