The Fish Keeping & Aquarium Guide.

Can Newts Coexist with Goldfish? A Comprehensive Guide

Affiliate Disclaimer

As an affiliate, we may earn a commission from qualifying purchases. We get commissions for purchases made through links on this website from Amazon and other third parties.

Newts and goldfish are both popular aquatic pets. However, many wonder if these two species can live together in the same tank. The answer is not a straightforward yes or no and depends on several factors.

First and foremost, it is essential to understand that newts are not fish but amphibians. They have different needs and behaviors than goldfish.

Newts require a land area to rest and breathe, while goldfish need plenty of swimming space. Additionally, newts are carnivorous and may eat smaller fish, including goldfish fry.

Therefore, it is crucial to consider the size and temperament of both species before attempting to house them together.


Can Newts Live with Goldfish?

Habitat Compatibility


When considering whether newts can live with goldfish, it is essential to consider their habitat needs.

Newts are amphibians that require an aquatic environment with clean, still water and plenty of hiding places.

Goldfish, on the other hand, are fish that prefer a more active and open-water environment.

Newts require a space free of predators and plenty of hiding spots to feel safe and secure.

Goldfish, however, can be pretty active and may disturb the newt’s habitat by digging up plants and creating a lot of movement in the water.


Dietary Compatibility


Another essential factor to consider is dietary compatibility. Newts are carnivores and require a diet of live insects, worms, and small fish. Goldfish, conversely, are omnivores and require a diet of both plant and animal material.

This means that if newts and goldfish are kept together, the newts may try to eat the goldfish or their food, which can cause problems for both species. Additionally, goldfish may eat the newt’s food, leaving them hungry and malnourished.

In summary, while it may be possible for newts and goldfish to live together, it is not recommended due to their differing habitat and dietary needs.

Providing each species with the appropriate environment and diet is essential to ensure their health and well-being.


Potential Risks and Solutions

Risk of Predation


Newts and goldfish have different dietary needs, which can lead to predation issues. Goldfish are omnivorous and may view newts as a food source, especially small ones. This can result in injury or death for the newts.


Risk of Disease Transmission


Another potential risk when housing newts and goldfish together is the transmission of diseases. Newts are known carriers of the chytrid fungus, which can be deadly to amphibians.

If a goldfish becomes infected, it can spread the disease to other fish in the tank.




It is recommended to house newts and goldfish in separate tanks to prevent predation. If they must be housed together, it is essential to provide hiding places for the newts and ensure they are well-fed. Feeding the goldfish a high-protein diet can also reduce the likelihood of them preying on the newts.

To prevent disease transmission, it is essential to quarantine newts before introducing them to a tank with goldfish. This will allow any potential diseases to be identified and treated before they spread to other fish.

Additionally, maintaining good water quality and hygiene in the tank can help prevent the spread of diseases.

Overall, while it is possible to house newts and goldfish together, it is essential to be aware of the potential risks and take steps to mitigate them.


Understanding Newts

Newts’ Natural Habitat


Newts are amphibians commonly found in North America, Europe, and Asia. They are often found in freshwater habitats, such as ponds, lakes, and streams. Newts prefer to live in areas with plenty of vegetation and hiding places, such as rocks, logs, and plants.

In the wild, newts are known to be solitary creatures and prefer to live alone. They are also nocturnal and spend most of their time hiding during the day. Newts are known to be territorial and will defend their territory against other newts.


Newts’ Dietary Needs


Newts are carnivorous and feed on insects, worms, and small crustaceans. They have a high protein requirement and need a diet of animal protein. In captivity, newts can be fed various foods, including live or frozen insects, worms, and small fish.

It is important to note that newts are toxic and can secrete a poisonous substance from their skin. The toxin is harmless to humans and larger animals but can be deadly to smaller animals, such as goldfish.

Therefore, keeping newts with goldfish in the same tank is not recommended.

In conclusion, newts are fascinating creatures that require a specific environment and diet to thrive. Understanding their natural habitat and dietary needs is crucial for their well-being.

It is essential to keep newts away from other animals, such as goldfish; their toxic skin secretion may harm that.


Understanding Goldfish

Goldfish’s Natural Habitat


Goldfish are a freshwater fish species that are native to East Asia. They are typically found in slow-moving or still bodies of water such as ponds, lakes, and rivers.

Goldfish are a hardy species that can tolerate a wide range of water conditions, but they prefer slightly alkaline water with a pH between 7.0 and 8.0. They also need plenty of oxygen in the water to survive.

In their natural habitat, goldfish feed on various plant and animal matter, such as algae, insects, and small crustaceans.

They are omnivores, meaning they eat both plant and animal-based foods. Goldfish are known for their ability to consume large amounts of food, but overfeeding can lead to health problems such as swim bladder disease and obesity.


Goldfish’s Dietary Needs


Goldfish require a balanced diet to maintain their health and well-being. A high-quality commercial fish food is recommended as the primary source of nutrition for goldfish.

The food should be specifically formulated for goldfish and provide a balanced mix of protein, fats, and carbohydrates.

In addition to commercial fish food, goldfish can also be fed various fresh or frozen foods such as brine shrimp, bloodworms, and vegetables like peas and spinach.

It is important to avoid feeding goldfish foods high in fat or containing excessive carbohydrates, as this can lead to health problems.

Goldfish should be fed small amounts of food several times daily rather than one large feeding. This helps prevent overfeeding and ensures that the fish get the nutrients they need to stay healthy.

Overall, understanding goldfish’s natural habitat and dietary needs is essential for providing them with the proper care and environment, they need to thrive.




In summary, keeping newts and goldfish together in the same tank is not recommended. While they may appear to coexist peacefully at first, several factors make it an unsuitable environment for both species.

Firstly, goldfish produce a lot of waste, leading to poor water quality and high ammonia levels. This can harm newts, which require clean and well-oxygenated water to survive. Additionally, newts are carnivorous and may see goldfish as prey, leading to potential aggression and stress for both species.

Furthermore, newts secrete toxins from their skin as a defense mechanism, which can harm goldfish if ingested. This can lead to health issues and even death for the goldfish.

Overall, it is best to provide separate tanks for newts and goldfish to ensure their needs are met and prevent potential harm or stress.

Latest Posts

  • Are Sea Anemones Hard to Care For: Essential Tips for Maintenance

    Are Sea Anemones Hard to Care For: Essential Tips for Maintenance

    Sea anemones, often found colorfully adorning aquariums, are marine invertebrates with distinctive tentacles. They are part of the Cnidaria phylum, which includes corals and jellyfish and are known for their symbiotic relationships with clownfish and other species. Tending for sea anemones in a home aquarium requires specific attention to water quality, lighting, and feeding. Maintaining…

    Read more

  • Are Sea Anemones Dangerous to Humans: Uncovering the Truth

    Are Sea Anemones Dangerous to Humans: Uncovering the Truth

    Sea anemones are often perceived as exotic and colorful ocean-floor dwellers that have garnered attention for their unique appearances in marine environments. Their vivid colors and graceful tentacle movements can capture the interest of divers and aquarium enthusiasts alike. Generally, they are not considered a threat to humans; most species have a sting that is…

    Read more

  • Why Are Sea Anemones Sticky: Uncovering the Secrets of Their Adhesive Powers

    Why Are Sea Anemones Sticky: Uncovering the Secrets of Their Adhesive Powers

    Sea anemones are fascinating marine creatures, often admired for their vibrant colors and graceful tentacle movements. The sticky sensation one experiences when touching an anemone might not be immediately apparent. This trait serves a crucial role in their survival. The stickiness is due to a specialized type of cell called a cnidocyte, which contains a…

    Read more