Are you considering adding both goldfish and guppies to your aquarium? If so, you might be wondering, “Can goldfish live with guppies?” The answer to this question isn’t a straightforward yes or no. While goldfish and guppies can technically live together, it’s important to understand the unique needs of each species to ensure their health and well-being. In this article, we will explore the topic of whether goldfish can live with guppies and discuss the similarities and differences in the aquarium set up for each species. By the end of this article, you’ll have a better understanding of whether goldfish and guppies are compatible tankmates and how to create a suitable environment for both species. So, let’s dive in and answer the question, “Can goldfish live with guppies?”

Similarities In Requirements

While there are some differences between the aquarium setups required for goldfish and guppies, there are also some similarities. Here are a few examples:

  1. Filtration: Both goldfish and guppies produce waste, and their aquariums require adequate filtration to maintain good water quality. A high-quality filter that can handle the bioload of your fish is essential for both species.
  2. Lighting: Both goldfish and guppies benefit from a consistent day-night cycle, which can be provided through a regular lighting schedule. Some live plants may also be included in the aquarium setup, and appropriate lighting is important for their growth.
  3. Water quality: While the ideal water temperature for goldfish and guppies differs (goldfish prefer cooler water while guppies prefer warmer water), both species require good water quality to thrive. Regular water changes, testing and maintenance are important in both setups.
  4. Decorations: Both goldfish and guppies appreciate hiding spots and other decorations in their aquariums. This can be provided through the use of plants, rocks, or other aquarium ornaments.
  5. Disease prevention: Both goldfish and guppies are susceptible to certain diseases, so it is important to monitor their health and take steps to prevent disease outbreaks. This includes maintaining good water quality, quarantining new fish before introducing them to the main tank, and observing fish closely for signs of illness.

Overall, while there are some differences between the aquarium setups required for goldfish and guppies, many of the same principles apply when it comes to maintaining a healthy and thriving aquarium environment.

Differences in Requirements

There are several differences between the aquarium set up for goldfish and guppies due to their differing needs:

  1. Water temperature: Can guppies live in cold water? Goldfish are coldwater fish and prefer water temperatures between 65-72°F (18-22°C), while guppies are tropical fish and require warmer water temperatures between 72-82°F (22-28°C). Therefore, different heating and temperature control systems are required for each species.
  2. Tank size: Goldfish are larger and more active than guppies, so they require more space to swim and play. They need a minimum of 20 gallons (80 liters) of water for goldfish, while guppies can be kept in smaller aquariums of 10-20 gallons (40-80 liters) depending on their number.
  3. Filtration and aeration: Goldfish produce a lot of waste and require a powerful filter and aeration system to maintain good water quality. Guppies produce less waste and don’t require such a strong filter system, but they still need adequate filtration and aeration.
  4. Plant life: Guppies are live-bearing fish and appreciate a planted aquarium, while goldfish tend to eat live plants and may require fake plants instead.

In summary, the differences in the aquarium setup for goldfish and guppies reflect their differing needs in terms of water temperature, tank size, filtration, plant life, water chemistry, and diet. It is important to research and understand the specific needs of each species before setting up their aquarium to ensure that they can thrive in their environment.

Can Guppies Live With Goldfish?
Can Guppies Live With Goldfish?

How Can Guppies Live with Goldfish?

So, you may still want to have both these fish together, so how can guppies live with goldfish? It is generally not recommended to keep goldfish and guppies together in the same aquarium because of their different needs and behaviors. However, if you still wish to keep both species in the same aquarium, here are some general guidelines to follow:

  1. Size and filtration: The aquarium should be large enough to accommodate the goldfish and provide enough swimming space for them. A minimum of 20 gallons (80 liters) is recommended. A powerful filtration system that can handle the waste produced by the goldfish should also be in place, with regular maintenance to ensure good water quality.
  2. Temperature and heating: While it’s difficult to find a temperature that suits both species, aim for a temperature range of around 70-74°F (21-23°C) as a compromise. A heater and thermometer can be used to keep the water temperature consistent.
  3. Plants and decorations: Live plants may not be suitable for goldfish as they tend to eat them, but fake plants and decorations can be used to provide hiding spots and add visual interest to the aquarium.
  4. Diet: Feeding goldfish and guppies different types of food at different times can help ensure that both species are getting the nutrients they need. Both fish are omnivorous and require a varied diet that includes both vegetable matter and protein.
  5. Monitoring: It’s important to closely monitor the behavior of both species in the aquarium to ensure that they are not being bullied or fighting. If there are any signs of aggression, it may be necessary to separate the species into different aquariums.


Can guppies live with goldfish, was the initial question in this article. In conclusion, while it’s not recommended to keep goldfish and guppies together, it is possible to set up an aquarium that accommodates both species by carefully considering their different needs and taking steps to ensure their health and well-being.