Axolotls, Goldfish and Compatibility: A Conundrum

There are many aquatic animals that have their own special charm and requirements. Goldfish and axolotls are popular among enthusiasts. Axolotls with their otherworldly looks and their regenerative powers have captured many people’s attention, while goldfish with their vivid colors and graceful swimming have been aquarium favorites for centuries. But can the two different aquatic species live in harmony together? We’ll examine the challenges, compatibility and considerations for keeping can axolotls live with goldfish in this article.

Axolotls – The Aquatic Salamanders

Axolotls (formally Ambystoma mexicanum) are a rare type of salamander found in the lakes and canals around Xochimilco. Their neotenic traits are what makes them so unique. This means that they maintain their larval appearance throughout their lives. Axolotls possess feathery, externally gills as well as feathery, appendages.

Goldfish: the Classic Aquarium Residents

For generations, people have kept goldfish in their aquariums or ponds. They are members of the Cyprinidae. Goldfish are freshwater fish that come in many shapes and colors. Common goldfish, as well as fancy goldfish, are among the most common.

Compatibility challenges:

Cohabitation between Axolotls (goldfish) and Goldfish is difficult because of their different care needs and traits.

Axolotls are best in water that is between 60 and 68degF (15-20degC), but goldfish do better with slightly warmer temperatures (65-75degF, 18-24degC). Maintaining the perfect temperature can be difficult.

Goldfish grow much larger than Axolotls. This can lead to problems. Axolotls can be injured by large goldfish that mistake them for food.

Axolotls consume live and frozen food such as earthworms and bloodworms. The goldfish is omnivorous, and they eat mainly plant-based food like flakes and pellets. Food competition can occur, with axolotls attempting to eat goldfish flakes and pellets, or goldfish grabbing axolotls’ food.

The two species are different in their requirements of water quality. Axolotls can be sensitive to ammonia, nitrates and other levels. However, goldfish tend to produce more waste. Finding the balance necessary to keep both in good health can be challenging.

Axolotls & Goldfish: Considerations to Keep Together

You should consider the following if you plan to have axolotls in the same aquarium as goldfish:

Tank Size: Axolotls need a large tank that has plenty of hideouts and hiding places. Tank Size: The tank size should accommodate both the potential goldfish growth as well as the needs of axolotls.

Temperature Control: The water should not exceed the lowest range for tolerance of both species. This is ideally 65degF. It may be necessary for you to use a heat or chiller in order to reach this equilibrium.

Feeding Strategy: Feed the axolotls separate from the goldfish. This will ensure that both species receive optimum nutrition without being in competition. It may be necessary to target feed the axolotls using a syringe, or place them in their own container.

The importance of regular water maintenance and testing cannot be overstated. Maintain stable conditions by monitoring ammonia levels.

Alternative Housing Options

Due to the difficulty of keeping axolotls with goldfish, you may want to separate them. Below are some alternative options:

Create dedicated tanks to house axolotls or goldfish. Each one should meet their specific requirements.

Goldfish in a Community Tank If you plan to keep two species of goldfish, it is best to place them together with tankmates that get along, while the Axolotls stay in their individual tank.

Aquatic Plants – Live aquatic plants or artificial ones can be used to enrich the habitat and provide hiding areas for Axolotls. Live plants may be eaten by goldfish, so select hardy types.


Axolotls, like goldfish, are captivating and fascinating aquatic creatures. However, their differing care requirements, feeding habits and sizes make them difficult to house together. Separate tanks that are tailored for each species’ needs will ensure the health and safety of both. It is possible to enjoy the unique beauty of both axolotls, and goldfish. This method does not compromise on their health or safety.