Thunder Maroon Clownfish

The Thunder Maroon Clownfish (Amphiprion biaculeatus) is an aggressive species that is considered reef-safe with caution, admired for its striking red-and-white coloration, bold contrasting patterns, and unique “marbled” appearance.

Males typically remain smaller, slimmer, and less dominant, while females/juveniles grow significantly larger, more robust, and become the dominant member of the pair.

They reach about 6 inches in adult size and should be housed in aquariums of at least 55 gallons (larger if paired or kept with other tank mates).

Provide ample live rock for territory, caves/hiding spots, and some open swimming space, along with a stable sandbed. Maintain water parameters of salinity ~1.020–1.025, temperature 72–79°F, and pH 8.1–8.4, and ensure a secure lid since clownfish are known to jump.

Diet should consist of a variety of foods including mysis shrimp, enriched brine shrimp, copepods, high-quality pellets, and marine algae-based preparations.

With proper care and respect for their territorial nature, this fish makes a bold and standout addition to the aquarium, especially in reef systems where their personality and vivid coloration truly shine.

International Aquatics Quarantine & Guarantee: All fish are checked by marine vets, given a formalin bath, and held for 14 days in copper-treated systems. We feed Selcon-soaked food with Kanaplex and Metroplex during quarantine. Unless marked, all livestock comes with our 15-Day Guarantee. You will receive a video of your fish eating before shipment. On request, we also send photos/videos after arrival at IA. Some species are import-to-order (3-10 business days). Many common species are already cleared or near the end of QT.

Several species will be import-to-order and may take anywhere from 3-10 business days to secure. Once your fish is secured, you will be notified, and the quarantine process will then begin.