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Getting to Know the Tank Bred Clown – Onyx
The Tank Bred Clown – Onyx is a stunning variation of the beloved clownfish family, notable for its sleek, deep black body contrasted with clean white bands. This dramatic colouration makes the Onyx a standout addition to any marine aquarium. As a tank bred specimen, the Onyx clown is generally hardier and more adaptable than wild-caught clownfish, making it an ideal choice for both beginners and seasoned aquarists.
Growing up to around 8–10 cm, the Onyx thrives in both reef and fish-only tanks. Its friendly nature and active swimming behaviour add vibrancy and life to your underwater world, making it a joy to watch.
Choosing Your Tank Bred Clown – Onyx
When picking an Onyx clownfish, opt for individuals with rich, uniform colouring and clear, alert eyes. Healthy fish should exhibit smooth fins, energetic movement, and no signs of stress like faded colours or damaged fins. Tank bred Onyx clowns usually accept prepared foods readily, simplifying their acclimatisation to your aquarium.
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Tank Setup and Environment
A minimum tank size of 80 litres is recommended to give the Onyx clown adequate space to swim and establish its territory. A well-cycled aquarium with plenty of live rock and hiding spots creates a natural environment, helping reduce stress and encourage natural behaviours. Hosting an anemone is not mandatory but can enhance the fish’s wellbeing and display.
Moderate water flow is preferred to replicate reef currents without overwhelming the fish. It’s important to secure the tank lid, as clownfish can jump when startled or excited.
Feeding and Nutrition
Nori seaweed sheets clipped to the glass daily
Spirulina-based flakes and pellets
Frozen mysis shrimp
Frozen brine shrimp
Chopped clam or prawn (offered occasionally)
Marine algae blends designed for tangs
Feed small amounts 2–3 times a day to maintain optimal health and vibrant colours.
Behaviour and Compatibility
The Onyx clown is known for its peaceful temperament but can be territorial within its chosen space, especially toward other clownfish. It coexists well with peaceful species such as gobies, blennies, and small wrasses. Its striking appearance and playful antics make it a captivating and entertaining aquarium resident.
Water Conditions and Flow
Temperature 24–27°C
pH 8.1–8.4
Salinity 1.023–1.025
Moderate water flow is ideal to mimic natural reef environments and promote health
Health and Longevity
Thanks to its tank bred origins, the Onyx clownfish is more resilient to common diseases than wild-caught fish. Consistently stable water parameters and a nutritious, varied diet are essential to prevent illnesses like marine ich. With proper care, your Onyx clown can live well beyond five years, providing long-lasting enjoyment.
Final Thoughts
The Tank Bred Clown – Onyx is a beautiful, hardy, and engaging fish that adds elegance and activity to any marine aquarium. By providing suitable tank conditions, a balanced diet, and peaceful tank mates, you can ensure your Onyx clown thrives and brings ongoing delight to your aquatic setup.
