Green Clown Goby

Green Clown Goby

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The Green Clown Goby (Gobiodon atrangulatus), is also known as the Earspot Coral Goby. It is a popular saltwater aquarium fish known for its vibrant green color and playful personality. Here are some care guidelines to ensure that your Green Clown Goby stays healthy and happy.

Tank Requirements:

  • The recommended tank size for a Green Clown Goby is at least 10 gallons.
  • The tank should have plenty of hiding spots, such as live rocks or artificial caves, for the goby to retreat to when feeling threatened.
  • A gentle water flow is preferable, as Green Clown Gobies are not strong swimmers.

Water Parameters:

  • The water temperature should be kept between 75-80°F (24-27°C).
  • The pH should be around 8.1-8.4, and the specific gravity should be between 1.020-1.025.
  • The water should be well-filtered and well-aerated, with regular water changes to maintain water quality.


Green Clown Gobies are omnivores and will eat a variety of foods, including frozen or live brine shrimp, mysis shrimp, and small pieces of fish or shrimp. They also graze on algae, so providing some live rock with algae growth is beneficial.


Green Clown Gobies are generally peaceful and can be kept with other peaceful fish, but should not be kept with aggressive or larger fish that may bully them. They are also known to be territorial towards other gobies, so only one Green Clown Goby should be kept per tank.


Green Clown Gobies are active and playful and enjoy exploring their surroundings. They are known to perch on live rocks and corals and will often swim upside down. They are also known to be jumpers, so a secure lid is necessary to prevent them from escaping. Overall, the Green Clown Goby is a hardy and colorful fish that makes a great addition to a saltwater aquarium with proper care and attention to their needs.