Feeder Guppy Half Box (300-350 Count)Feeder Guppy Feeder Guppy Half Box (300 350 Count) Type: Poecilia reticulata Care Level: Easy Water Conditions: PH 6. 5 8. 5 and Medium hard to Hard Temperature: 65 80?? F (18 27?? C) Maximum Size: 2. 5 inches (6. 5 centimeters) Guppies Diet Guppies eat a wide variety of foods in the wild, including algae and water insect larvae. In a home aquarium though, you want to feed your guppies a combination of foods. By feeding them a quality flake food