The Clarkii Clownfish (Amphiprion clarkii), also known as the Clark's Anemonefish, is a hardy, adaptable, and brightly colored species popular in the marine aquarium trade. Native to the Indo-Pacific region, from the Red Sea to Australia and Japan, this clownfish is known for its bold personality and strong compatibility with a variety of anemones.
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A Name That Reflects Its Appearance
The Clarkii Clownfish displays a striking combination of yellow, orange, and black hues, with two or three white bands running across its body. While juveniles often have a brighter orange coloration, adults tend to develop darker shades, sometimes appearing almost black depending on their region and habitat.
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Growth and Tank Requirements
Clarkii Clownfish grow up to 5 inches, making them one of the larger clownfish species. They require a minimum tank size of 30 gallons, though a larger tank (50+ gallons) is preferred if housing them with an anemone or other tank mates. Their tank should include:
Live rock structures for hiding and grazing
Moderate to strong water flow
Anemones for hosting (optional but encouraged)
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Care and Water Parameters
Clarkii Clownfish are hardy and adaptable, making them a great choice for beginner and advanced marine aquarists alike. They thrive in:
Temperature: 75-82°F
pH Range: 8.1-8.4
Salinity: 1.020-1.025
Water Hardness: 8-12 dKH
They are not dependent on anemones, but if kept with one, species such as Bubble Tip Anemones (Entacmaea quadricolor) are great choices.
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Diet and Feeding
Clarkii Clownfish are omnivores, requiring a balanced diet that includes:
High-quality marine pellets and flakes
Frozen foods like brine shrimp, mysis shrimp, and chopped seafood
Marine algae, spirulina, and nori for added nutrition
Occasional live foods to encourage natural foraging behavior
A varied diet enhances their color and overall health.
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Unique Behaviors
Clarkii Clownfish are known for their bold and sometimes territorial nature, especially when defending their host anemone or nesting site. Unlike some clownfish species, they can form pairs more easily and are more likely to accept various anemone species. They are also one of the most active swimmers among clownfish, making them entertaining to watch.
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Important Considerations
Clarkii Clownfish can be semi-aggressive, particularly towards other clownfish species or similarly sized fish. They are best kept as a mated pair or singly unless housed in a very large tank. If keeping them with anemones, ensure proper lighting and water quality to support the anemone's health.
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Please note that these are general guidelines, and for more accurate values, we encourage you to contact Living Aquarium by phone or in person. Within store hours, our team of experts are always happy to answer any questions you may have and provide personalized guidance on care.