17/03/2022
It's Fishy Friday.
The Humble Guppy.
Guppies (Poecilia reticulata) are one of the most popular fish in the aquarium hobby because of their brilliant colors, lively personalities, and ease of breeding. In this care guide, we answer your most frequently asked questions about this simple yet beautiful species.
Guppies grow to an average of 2 inches long, so the smallest tank size we recommend is a 5-gallon aquarium for a trio of guppies. But given how quickly they reproduce, a 10- or 20-gallon aquarium would be more appropriate in the long run. If you plan on breeding them, start with a ratio of one male for every two to three females, and provide lots of cover (such as live aquarium plants) for the babies to hide in. Plus, use gentle filtration like a sponge filter so that the tiny fry won’t get sucked up.
Like many livebearers, guppies enjoy pH levels at 7.0 or greater. They also like hard water with good amounts of calcium, magnesium, and other essential minerals. If you live off well water with high pH, you’re going to become one of the best guppy breeders ever. However, if your water is naturally soft, add Wonder Shell to your aquarium, and it will help raise your water hardness and add minerals to the tank.
An aquarium heater is recommended to keep the water warmer at 76 to 78°F, since these new lines of fancy guppies are not as resilient as the original species found in the wild. At this temperature range, your guppies should have an average life span of two to three years. If you raise the heat to 82°F, the fish will grow faster and make more babies – but they’ll only live for 18 months. If you lower the temperature to 72°F instead, their life span may increase to 3.5 years or longer, but they’ll take forever to reach adulthood and may only have babies every six months.
Guppies are pros at begging for food, so owners often overfeed them, which can lead to constipation and other health issues. Feed adult guppies once or twice a day, as much as they can eat in one minute. If you are raising fry, you can increase the feedings to three to five times a day, but make sure that each meal is much smaller in amount so that you won’t foul the water with excess food. Guppies are not picky eaters and will even graze on algae growing inside the aquarium. We like to give ours a wide variety of foods, such as bloodworms, brine shrimp, flake foods, pellets, and Easy Fry and Small Fish Food.