What Do Guppy Fry Eat? - "one of the new baby guppies" by little-pete is licensed under CC BY-ND 2.0.
What Do Guppy Fry Eat? - "one of the new baby guppies" by little-pete is licensed under CC BY-ND 2.0.


What do guppy fry eat? This question arises when caring for these adorable baby guppies, as their dietary needs play a crucial role in their growth and development. Initially, guppy fry rely on their yolk sac for nutrition, but once it is absorbed, it becomes essential to provide them with appropriate food. So, what do guppy fry eat? Specialized commercial fry food and infusoria are the answers. Feeding them small, frequent meals is key. By understanding what guppy fry eat, we can ensure their vibrant and fascinating journey toward healthy adulthood. Please read on to learn more…

About Guppy Fry

Guppy fry, or baby guppies, are the offspring of adult guppies (Poecilia reticulata). They are born live, rather than hatching from eggs, and are typically around 6-8 millimeters in size at birth. Guppies are known for their vibrant colors and can exhibit various patterns even at a young age.

Here are some key aspects about guppy fry:

  1. Growth Rate: Guppy fry grow rather rapidly, and their growth rate can vary depending on factors such as genetics, diet, water quality, and environmental conditions. With proper care and nutrition, guppy fry can reach sexual maturity in as little as 2-3 months.
  2. Coloration: Guppy fry often display different coloration compared to adult guppies. They may exhibit more subdued or pale colors initially, and their color patterns and intensity can change as they mature. It’s common for fry to undergo color transformations as they develop, and the final colors they exhibit may not be apparent until they reach maturity.
  3. Breeding Potential: Female guppy fry can become sexually mature and start reproducing as early as 3 months of age, depending on their growth rate and maturity. If you plan to selectively breed guppies, it’s important to monitor the growth and development of the fry and separate males and females at an appropriate age to prevent unintended breeding.

Guppy fry are fascinating to observe as they develop and grow into colorful adult fish. By providing them with proper care, nutrition, and suitable tank conditions, you can enjoy their transformation and contribute to their healthy development.

Raising Guppy Fry

When raising guppy fry, there are several important factors to consider to ensure their well-being and successful development. Here are some additional considerations:

  1. Tank Setup: Provide a suitable environment for the fry by setting up a separate tank or breeding net within the main aquarium. This helps protect them from adult guppies or other fish that might prey on the fry. The tank should have gentle water flow to prevent the fry from getting sucked into filters or pumps.
  2. Water Quality: Maintain excellent water quality to promote healthy growth. Regularly test the water parameters for temperature, pH, ammonia, nitrite, and nitrate levels. Keep the water temperature stable between 75-82°F (24-28°C) and maintain proper filtration and regular water changes to ensure a clean and stable environment.
  3. Feeding Schedule: Establish a consistent feeding schedule for the guppy fry. Initially, provide them with small amounts of powdered or crushed fry food several times a day. As they grow, adjust the feeding frequency and introduce larger food particles that they can consume easily. Monitor their feeding behavior and adjust the amount of food accordingly, making sure not to overfeed, as it can lead to poor water quality.
  4. Tank Mates: Avoid keeping aggressive or larger fish species with the guppy fry, as they may pose a threat to the vulnerable young fish. Opt for peaceful tank mates or keep the fry in a separate tank until they are larger and more capable of defending themselves.
  5. Separation of Fry: As guppy fry grow, they may start to develop coloration and distinguishable features. At this stage, consider separating male and female fry to prevent unwanted breeding and maintain control over your guppy population. It’s also advisable to separate fry of different sizes, as larger fry may outcompete smaller ones for food.
  6. Observing Growth and Health: Regularly observe the guppy fry for any signs of disease, stress, or abnormalities. Healthy fry should be active, have a good appetite, and exhibit normal swimming behavior. If you notice any issues, such as poor appetite, sluggishness, or unusual coloration, it’s important to take appropriate action, such as adjusting water conditions or seeking expert advice if necessary.

By considering these factors and providing appropriate care, you can greatly increase the chances of raising healthy and thriving guppy fry.

What Do Guppy Fry Eat? - "one of the new baby guppies" by little-pete is licensed under CC BY-ND 2.0.
What Do Guppy Fry Eat? – “one of the new baby guppies” by little-pete is licensed under CC BY-ND 2.0.

So, What Do Guppy Fry Eat?

So, ‘what do guppy fry eat?,’ you may wonder. Guppy fry, or baby guppies, have specific dietary needs to support their growth and development. Initially, they rely on their yolk sac for nutrition, which is absorbed shortly after birth. Once the yolk sac is consumed, they need to be provided with appropriate food to continue their growth.

The most suitable food for guppy fry is powdered or finely crushed commercial fish food specifically formulated for baby fish or fry. These foods are highly nutritious and contain essential vitamins, minerals, and proteins necessary for their healthy development. Look for products labeled as “fry food” or “baby fish food” at your local pet store or aquarium supply shop.

In addition to commercial fry food, you can also offer them infusoria. Infusoria is a collection of tiny organisms, such as protozoans and microscopic algae, which can be cultivated at home.

As the guppy fry grow, you can gradually introduce finely crushed flakes or powdered pellets designed for adult guppies. It’s important to ensure that the food particles are small enough for them to consume easily.

Remember to feed the guppy fry small amounts several times a day, as they have tiny stomachs and need frequent feeding to meet their nutritional requirements. Regular water changes and a clean aquarium environment are also crucial for their overall health and well-being.


In conclusion, understanding what do guppy fry eat is crucial for their proper care and development. Providing specialized commercial fry food and infusoria ensures they receive the necessary nutrients for growth. Feeding them small, frequent meals tailored to their dietary needs promotes their health and vitality. By considering what do guppy fry eat, we can contribute to their successful transition from adorable babies to colorful and thriving adult guppies.