Can Angelfish Live With Mollies? - "Peru-Altum-Skalar - Pterophyllum cf. scalare" by Dornenwolf is licensed under CC BY 2.0.
Can Angelfish Live With Mollies? - "Peru-Altum-Skalar - Pterophyllum cf. scalare" by Dornenwolf is licensed under CC BY 2.0.


Can angelfish live with mollies? This question often arises among aquarium enthusiasts who wish to create a harmonious and visually captivating community tank. Angelfish and mollies are both popular choices in the world of freshwater aquariums, each with its own unique appeal. In this article, we will explore the compatibility between these two species, considering their specific needs and behaviors, and provide guidance on how to successfully maintain a tank where angelfish and mollies coexist.

Appearance and Behavior

Mollies and angelfish are two popular species of tropical freshwater fish that are often kept in home aquariums. Each of these species has its own distinct appearance and behavior. Let’s take a closer look at both mollies and angelfish:


Appearance: Mollies are small, colorful fish that come in various shades and patterns. They have a distinctive, elongated body shape, and their fins are often well-developed. Mollies are available in a variety of colors, including black, white, orange, and gold. Some species may have spots or marbled patterns on their bodies, making them visually appealing.

Behavior: Mollies are generally peaceful fish, but they can display some territorial behavior, especially during breeding or if there is a limited food supply. They are social creatures and tend to thrive when kept in groups of three or more. Mollies are livebearers, which means they give birth to live young rather than laying eggs. They can be prolific breeders, so if you have both males and females in the same tank, you might end up with baby mollies.

Mollies are known for being relatively easy to care for, making them suitable for both beginners and experienced aquarists. They are omnivorous and will eat a variety of foods, including commercial flakes, pellets, and live or frozen foods like brine shrimp or bloodworms.


Appearance: Angelfish are known for their striking appearance, which includes a laterally compressed body with long, triangular dorsal and anal fins. Their most distinctive feature is their graceful, disc-shaped body and tall, trailing dorsal and anal fins, which resemble angel wings, hence the name “angelfish.” These fish come in various color variants, with popular species such as the Pterophyllum scalare featuring silver bodies with black vertical stripes.

Behavior: Angelfish are known for their graceful swimming and elegant behavior. They are generally peaceful fish when kept in a community tank with compatible species, but they can become territorial during breeding. It’s important to provide them with enough space and hiding spots to reduce potential conflicts. Angelfish are known to form monogamous pairs and are excellent parents, guarding their eggs and caring for their fry.

In terms of diet, angelfish are omnivores, and their diet can include high-quality flake or pellet foods, supplemented with live or frozen foods like brine shrimp, daphnia, and bloodworms. It’s essential to provide them with a balanced diet to maintain their vibrant colors and overall health.

Both mollies and angelfish are popular choices for home aquariums due to their captivating appearances and relatively manageable care requirements. However, it’s crucial to research their specific needs and compatibility with other fish in your tank to ensure a thriving and harmonious aquatic environment.

Can Angelfish Live With Mollies in Your Tank?

So, can angelfish live with mollies, you may wonder.

Keeping mollies and angelfish in the same aquarium can be challenging but is possible with careful consideration of their specific needs and compatibility. Here are some factors to consider when maintaining a mixed tank of mollies and angelfish:

  • Tank Size: Both mollies and angelfish require adequate space to thrive. A larger tank helps reduce territorial conflicts and provides better swimming room. Aim for a tank size of at least 30 gallons (120 liters), but larger is even better, especially if you plan to keep multiple angelfish.
  • Water Parameters: Mollies and angelfish have somewhat different preferences for water parameters. It can be challenging to find a balance, but it’s essential to aim for stable water conditions that fall within both species’ tolerance ranges.
  • Temperature: Mollies and angelfish both prefer warm water, but angelfish typically require a slightly higher temperature (78-82°F or 25-28°C) compared to mollies (75-80°F or 24-27°C). Make sure the temperature is within the acceptable range for both species.
  • Filtration and Water Quality: Good filtration is essential to maintain water quality, as both mollies and angelfish are sensitive to ammonia and nitrite. Regular water changes are crucial to keep the tank clean and stable. Use a high-quality filtration system to ensure optimal conditions.
  • Compatibility: Mollies and angelfish can coexist, but their temperaments can vary. Angelfish are generally peaceful when kept in groups or pairs but can become territorial during breeding. Mollies are generally peaceful but can sometimes display territorial behavior, especially if there is limited space or food. Ensure there are enough hiding spots and visual barriers in the tank to reduce aggression and provide refuge for each species.
  • Diet: Both mollies and angelfish are omnivorous. Provide a balanced diet that includes high-quality flake or pellet foods, as well as live or frozen foods like brine shrimp, daphnia, and bloodworms. Ensure that all fish in the tank receive proper nutrition.
  • Breeding: Be prepared for the possibility of molly and angelfish fry. If you don’t want them to breed, you can separate the males and females of one species or use a separate breeding tank.
  • Disease Management: Mollies and angelfish are susceptible to common fish diseases. Quarantine new fish before introducing them to the tank, and monitor your fish for signs of illness. Promptly address any disease outbreaks to prevent them from spreading.
  • Tank Decor: Provide plenty of hiding places, plants, and visual barriers in the aquarium. Mollies and angelfish appreciate areas where they can retreat if they feel threatened.
  • Observation: Regularly observe the behavior of both species to ensure they are compatible. If any signs of aggression or stress are evident, be prepared to separate them if necessary.

Keeping mollies and angelfish in the same aquarium is possible with careful planning and attention to the specific needs of both species. It’s essential to maintain water quality, create a harmonious environment, and be prepared to address any potential conflicts. Always research and understand the requirements of your fish to provide them with the best possible care.

Can Angelfish Live With Mollies? - "Peru-Altum-Skalar - Pterophyllum cf. scalare" by Dornenwolf is licensed under CC BY 2.0.
Can Angelfish Live With Mollies? – “Peru-Altum-Skalar – Pterophyllum cf. scalare” by Dornenwolf is licensed under CC BY 2.0.

Will the Angelfish Eat Molly Fry?

Angelfish are known to eat molly fry, especially if the angelfish are large enough and the fry are small and vulnerable. Angelfish have a somewhat predatory instinct, and they may view small fish fry as potential food. If you have both angelfish and mollies in the same tank and are concerned about the safety of molly fry, there are a few strategies you can employ:

  • Separate Breeding Tank: If you plan to breed mollies, it’s a good idea to use a separate breeding tank. This tank can be specifically set up to protect and nurture the fry. Once the fry have grown large enough to avoid being seen as prey by the angelfish, you can consider moving them back to the main tank.
  • Provide Hiding Places: Within the main tank, create hiding places for the molly fry. Dense vegetation, floating plants, or various hiding spots can help protect them from being consumed by the angelfish.
  • Monitor and Remove Fry: Regularly check for molly fry in the main tank. When you spot them, consider moving them to a separate nursery tank until they are large enough to fend for themselves.
  • Keep Angelfish Well-Fed: Ensure that your angelfish are well-fed with a balanced diet to reduce their instinct to hunt for smaller fish. A well-fed angelfish may be less likely to view molly fry as a food source.

Remember that while angelfish might eat molly fry, individual behaviors can vary. Some angelfish may be less predatory than others. However, it’s generally a good practice to take precautions to protect molly fry when keeping them in a tank with angelfish, as the risk of predation is significant.


In conclusion, the cohabitation of angelfish and mollies in the same aquarium is indeed possible with careful planning and attention to various factors. By considering the compatibility of their water parameters, providing ample space and suitable hiding spots, and monitoring their behavior, aquarists can create an environment where angelfish and mollies not only coexist but thrive together. While challenges may arise, the careful management of these two species can lead to a stunning and dynamic aquatic display that showcases the beauty of both angelfish and mollies in a single tank. So, to answer the question, “Can angelfish live with mollies?”—yes, they can, but it’s essential to be well-prepared and attentive to ensure their well-being and the success of your mixed aquarium.