Bubble-tip Anemone (Entacmaea quadricolor)

Welcome to our comprehensive guide on the Bubble-tip Anemone, scientifically known as Entacmaea quadricolor. This article will provide you with extensive information on its size and appearance, natural region, behavior, diet, and how to successfully keep them at home. Whether you are an experienced aquarist or a beginner, this guide is designed to offer you valuable insights into caring for this fascinating marine invertebrate. Our goal is to ensure you have all the knowledge needed to make your Bubble-tip Anemone thrive in your home aquarium.

Size and appearance

The Bubble-tip Anemone is a captivating marine creature renowned for its vibrant colors and distinctive bubble-tipped tentacles. These tentacles can vary in color, ranging from green and brown to red and pink. In terms of size, they can grow up to 30 centimeters (12 inches) in diameter, making them a noticeable and attractive addition to any marine tank.


The natural habitat of the Bubble-tip Anemone spans the Indo-Pacific region, including areas like the Red Sea and the Great Barrier Reef. They typically reside in shallow waters, where they attach themselves to rocks and coral reefs. This distribution indicates their preference for well-lit environments with stable water conditions.


Bubble-tip Anemones are known for their symbiotic relationship with clownfish. The anemone provides protection to the clownfish with its stinging tentacles, while the clownfish, in return, brings food to the anemone and helps keep it clean. This mutually beneficial relationship is one of the most fascinating aspects of marine aquariums. Additionally, Bubble-tip Anemones can exhibit interesting behaviors such as splitting, where one anemone divides into two, promoting propagation in your tank.


In the wild, Bubble-tip Anemones capture food using their stinging tentacles. They primarily feed on small fish, plankton, and other tiny marine organisms. In a home aquarium, their diet can be supplemented with meaty foods such as shrimp, fish, pieces of mussels and specialized anemone foods available at pet stores. Feeding them two to three times a week is generally sufficient to meet their nutritional needs.

How to keep the Bubble-tip Anemones at home

Successfully keeping Bubble-tip Anemones in a home aquarium requires attention to several key factors:

Tank size: A minimum of 100 liters (26 gallons) is recommended to provide ample space for the anemone to expand and thrive.
Water temperature: Maintain a stable temperature range between 24-28 degrees Celsius (75-82 degrees Fahrenheit). Sudden changes in temperature can stress the anemone and affect its health.
Lighting: Bubble-tip Anemones require strong lighting, such as LED lights, metal halide lights or a T5 light, to support their photosynthetic symbionts, zooxanthellae, which live within their tissues. Proper lighting is crucial for their overall health and coloration.
Water Parameters: Maintain a pH level between 8.1 and 8.4. Regular water changes and proper filtration are essential to keep nitrate and phosphate levels low.
Placement: Ensure the anemone is placed on a rock or crevice where it can attach itself securely. This will prevent it from moving around the tank, which can sometimes harm other inhabitants or itself.
Compatibility: While Bubble-tip Anemones are generally compatible with clownfish, care should be taken when housing them with other invertebrates and fish. Avoid aggressive tank mates that may harm the anemone.
Monitoring: Regularly monitor the anemone for signs of stress or illness, such as retraction of tentacles or loss of color. Prompt action can prevent potential health issues from escalating.

The Bubble-tip Anemone is a stunning and engaging addition to any marine aquarium. With their beautiful appearance and unique behaviors, they can become the centerpiece of your tank. By following the guidelines outlined in this article, you can ensure your Bubble-tip Anemone thrives in your home aquarium. Remember, maintaining stable water conditions, providing adequate lighting, and feeding them a nutritious diet are key to their health and longevity.

If you found this article helpful, be sure to share it with other marine aquarium enthusiasts and explore our other resources on marine life care. Happy fishkeeping!

Scientific nameEntacmaea quadricolor
Type of aquariumMarine
SizeUp to 30 cm (12 inches) in diameter
Ideal tank sizeMinimum 100 liters (26 gallons)
Ideal water temperature24-28°C (75-82°F)
DietMeaty foods (shrimp, fish)
ReproductionSplitting (asexual reproduction)
Life spanSeveral years

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