Can guppies live with goldfish? (2024)

Guppies are small and colorful fish that many people like to have in their fish tanks. They are known for being very lively and can have many different colors and patterns on their bodies. Guppies are easy to take care of, which makes them a popular choice for people who are just starting to keep fish.

Goldfish are another type of fish that many people enjoy having at home. They are larger than guppies and can come in colors like gold, orange, and even white. Goldfish are known for their round, chubby bodies and flowing fins. They have been kept as pets for a very long time and are also quite easy to take care of, which makes them great for beginners too.

Guppies and goldfish can live together but it’s not the best idea. Guppies like warmer water and goldfish need cooler water to stay healthy.

Can guppies live with goldfish?

Guppies and goldfish are popular pets found in many home aquariums. They are colorful, lively and fun to watch. Let’s learn a bit more about each of them before we discuss if they can live together.

Guppies are small and bright fish known for their vibrant tails and lively behavior. They are easy to take care of, which makes them great for beginners. Guppies like warm water and can be found in many different colors and patterns.

Goldfish are larger than guppies. They are famous for their beautiful golden color but they can also be orange, white, black and many other colors. Goldfish need more space to swim because they can grow quite big. They prefer cooler water compared to guppies.

Now can guppies live with goldfish? It might seem like a good idea to put them together because they’re both popular and pretty but there are a few reasons why it might not work well.

Can guppies live with goldfish?
Guppy and Goldfish

First guppies and goldfish like different temperatures of water. Guppies enjoy warmer water while goldfish need cooler conditions to stay healthy. If the water is too warm for the goldfish they won’t be happy or healthy. If it’s too cool for the guppies they will have the same problem.

Second goldfish can grow much bigger than guppies and might accidentally hurt them. Goldfish don’t mean to cause harm but when they’re looking for food they might mistake a small guppy for a snack. Also goldfish produce a lot of waste which can make the water dirty faster. This is not good for guppies who need clean water to stay healthy.

So even though guppies and goldfish are both wonderful fish they have different needs. It’s best to keep them in separate tanks where they can each have the right kind of care, water and space they need to be happy and healthy.

Related reading: Can Glofish Live With Guppies

Factors Affecting Compatibility

When thinking about if guppies can live with goldfish there are a few important things to look at. These include the water they live in how big and how they act and how much room they need.

  • Water Temperature and Conditions Firstly guppies and goldfish need different kinds of water to be happy. Guppies like warmer water usually between 75 and 82 degrees Fahrenheit. Goldfish are okay with cooler water around 68 to 74 degrees. So if the water is too warm or too cold for one it might not be good for them to live together.
  • Size and Behavior Differences Another big thing to think about is how big they get and how they behave. Goldfish can grow much bigger than guppies. Because of this, a goldfish might try to eat a guppy especially if it fits in its mouth. Guppies are small and fast but in a small space and they might not be able to get away from a hungry goldfish.
  • Space Requirements Lastly how much room they need matters a lot. Guppies are small and can live in a smaller tank with lots of others. But goldfish need a lot of room because they get big and make a lot of waste. If they’re put together in a tank that’s too small it can make the water dirty faster and might not be good for either of them.

In short even though guppies and goldfish are both fish, their needs are quite different. It’s important to make sure they both have what they need to be healthy and happy, which might mean keeping them in separate tanks.

Can Guppies and Goldfish Live Safely in the Same Tank?

Guppies and goldfish living together in the same tank is usually not a good idea. Guppies are small and tropical fish that like warm water while goldfish are cold-water fish that grow much bigger. Goldfish also produce a lot of waste which can quickly make the water dirty and something guppies can’t handle well.

Guppies and Goldfish Live Safely in the Same Tank
Guppies and Goldfish in the Same Tank

There’s a risk that goldfish might bully or eat smaller guppies because of the size difference. Also the diet and health needs of these fish are different and making it hard to take care of both at the same time in the same space.

Here are the important factors to consider:

  • Water Temperature: Guppies need warmer water than goldfish.
  • Size Difference: Goldfish can grow much larger than guppies and may bully or eat them.
  • Water Quality: Goldfish make more waste, which can harm guppies by making the water dirty.
  • Health Risks: Diseases can spread more easily between them because of their different needs and the stress of not living in the right conditions.
  • Diet: They eat different kinds of food, which makes feeding them properly a challenge.

Can Goldfish and Guppies Eat the Same Food?

Goldfish and guppies can share some types of food but it’s not the best idea to feed them exactly the same thing all the time. Guppies are small tropical fish that need foods high in protein to stay healthy. They enjoy eating special flakes or pellets made for tropical fish and they also like tiny, live foods or frozen snacks.

Can Goldfish and Guppies Eat the Same Food?
Goldfish and Guppies Eat the Same Food

Goldfish are bigger and need a diet with more fiber. They eat goldfish flakes or pellets that help them digest better. Even though both might eat the same treat once in a while, their daily food should match what each fish needs to be happy and healthy.

Important Factors

  • Different Needs: Guppies and goldfish have different needs. Guppies need more protein and goldfish need more fiber.
  • Type of Food: There are special flakes for guppies (tropical fish flakes) and different ones for goldfish.
  • Health: If they don’t eat the right food then guppies and goldfish can get sick. For example, goldfish can have trouble swimming if they eat too much protein because it affects their swim bladder.
  • Treats: Some treats like brine shrimp or vegetables can be good for both but these should not be their main food.

In short words while goldfish and guppies can eat the same treats sometimes their everyday food should be different to make sure they get what they need to stay healthy.

Will goldfish eat guppy fry?

Yes, goldfish may eat guppy fry. Goldfish are opportunistic feeders which means they tend to eat whenever they have the chance and this includes consuming smaller fish if they can fit them in their mouths. Guppy fry are very small and making them an easy target for goldfish. When keeping goldfish and guppies together it’s important to consider the size and temperament of your fish to ensure the safety of the guppy fry.

Will goldfish eat guppy fry?
Guppy fry

Goldfish are not naturally aggressive fish but their instinct to eat whatever fits in their mouths can lead to them consuming guppy fry. Guppies give birth to live young, known as fry, which are tiny and vulnerable. Because goldfish are much larger than guppy fry, they might see these tiny fish as food rather than tank mates.

Preventing Goldfish from Eating Guppy Fry

If you have both goldfish and guppies in the same tank and are concerned about the safety of the fry, there are steps you can take to protect them. Providing plenty of hiding spots, such as plants and small caves, can help guppy fry evade larger fish. Additionally, using a separate breeding tank for guppies during their birthing period can ensure the fry grow large enough not to be seen as food by the goldfish.

Feeding Your Goldfish Properly

Feeding your goldfish a proper and varied diet can also reduce the risk of them preying on guppy fry. If goldfish are well-fed with a diet that meets their nutritional needs, they might be less likely to go after the fry. However, even a well-fed goldfish might eat guppy fry out of instinct, so it’s important to monitor their interaction and separate them if necessary.


While guppies and goldfish can share the same tank, it’s not the ideal situation for either type of fish. Goldfish might eat guppy fry due to their size difference and feeding habits. Also, guppies and goldfish have different needs in terms of water temperature and environment, making it challenging to create a living space that suits both. Goldfish produce a lot of waste, which can lead to poor water conditions for guppies. Although it’s possible to keep them together with careful planning and monitoring, it’s usually better to house them separately to ensure the health and safety of both guppies and goldfish. Creating a harmonious aquarium environment requires understanding and catering to the specific needs of each fish species.

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