Family: Poeciliidae (Poeciliids), subfamily: Poeciliinae
Origins: South America: Venezuela, Barbados, Trinidad, northern Brazil and the Guyanas.
Scientific Name: Poecilia reticulata
Common Name:  Guppy
Size: 1.5"
Preferred pH range:  7.0 - 7.5
Temperature Range: 72-78 F
Temperment: Community / Peaceful
Comments:  Occurs in warm springs and their effluents, weedy ditches and canals. Found in various habitats, ranging from highly turbid water in ponds, canals and ditches at low elevations to pristine mountain streams at high elevations. Inhabits slow-flowing or still water near the margin of pools among vegetation. Has a wide salinity range but requires fairly warm temperatures (23-24 °C) and quiet vegetated water for survival. Feeds on zooplankton, small insects and detritus. One of the most popular aquarium fishes with many standardized varieties. Used in genetics research. Female reaches 5 cm. Males mature at 2 months and females at 3 months of age. Aquarium keeping: in groups of 5 or more individuals. A very popular and widely available species in the aquarium trade.  The more exotic colors and fin lengths are the result of selected captive breeding
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Guppies are a familiar fish to most aquarists. These hardy colorful fish add excitement and brilliance to the passive community aquarium, and are easy to breed, making them an ideal choice for the novice aquarist. Male Guppies usually have a larger more colorful tail than their female counterpart. Many strains such as cobras, deltas, and tux varieties are available. These variety names refer to among other traits, the color pattern on the side of the fish's body, and also the shape and pattern on the tail. Guppies remain small, under 2-1/2 inches in length, and will add interest and color to the small community aquarium.