The White Stripe Maroon Clownfish, scientifically accepted as Amphiprion biaculeatus, is one of the largest and most impressive clownfish species kept in marine aquariums. It is recognized by its rich red to deep maroon body coloration and three contrasting white vertical bands.
The species has historically been known as Premnas biaculeatus, and that name remains widespread in the aquarium trade. Current FishBase and WoRMS taxonomy, however, place the species within Amphiprion as Amphiprion biaculeatus. For customer recognition and SEO, Premnas biaculeatus is still worth retaining as a synonym in the product information and tags.
This listing is for a captive-bred/tank-raised pair maintained at Pacific East Aquaculture in dedicated systems separate from our wild-collected fish. Our captive-bred and tank-raised saltwater fish are carefully observed and maintained under professional husbandry protocols prior to sale, without the routine conditioning and proactive treatment protocols used for wild-collected specimens.
White Stripe Maroon Clownfish exhibit pronounced sexual size differences. Mature females become substantially larger than males and may reach approximately 6–7 inches, while the male remains much smaller. Sea & Reef reports an adult maximum around 6 inches, while Sustainable Aquatics lists approximately 6.7 inches.
They are hardy and reef compatible but are also among the most territorial clownfish, particularly once mature and paired. Their assertive behavior should be considered carefully when selecting tankmates.
Care Guide
Scientific Name: Amphiprion biaculeatus (Bloch, 1790)
Common Names: White Stripe Maroon Clownfish, Maroon Clownfish, Spinecheek Anemonefish
Former/Trade Scientific Name: Premnas biaculeatus
Family: Pomacentridae
Availability: Captive Bred / Tank Raised Pair
Care Level: Easy to Moderate
Temperament: Aggressive / highly territorial as adults
Reef Compatibility: Reef compatible
Minimum Aquarium Size: 75 gallons recommended for an established pair
Maximum Size: Approximately 6–7 inches, with females considerably larger than males
Diet: Omnivore
Temperature: Approximately 75–82°F
Specific Gravity: 1.023–1.026
pH: 8.1–8.4
Aquarium Requirements:
Provide a mature marine aquarium with substantial rockwork, secure retreats, and enough territory for the pair. Because Maroon Clownfish become significantly larger and more territorial than Ocellaris and Percula Clownfish, I would recommend 75 gallons or larger for an established adult pair. Aquatics Unlimited similarly recommends 75 gallons or more for a pair.
Temperament:
Maroon Clownfish are among the more assertive members of the clownfish group. Mature females can be particularly territorial and may aggressively defend a host anemone, nesting site, or large portion of the aquarium. Established pairs should generally not be mixed with other clownfish species.
Reef Compatibility:
Reef compatible. Maroon Clownfish are not coral predators, although their territorial behavior can become an issue with passive fishes.
Diet and Feeding:
Offer a varied omnivorous diet including high-quality marine pellets and flakes, mysis shrimp, enriched brine shrimp, copepods, finely chopped marine foods, and other appropriately sized frozen preparations.
Host Anemone:
Maroon Clownfish are especially well known for associating with the Bubble Tip Anemone (Entacmaea quadricolor). A host anemone is not required for captive-bred individuals to remain healthy.
