Black Storm Longfin Clownfish - Amphiprion ocellaris

Black Storm Longfin Clownfish (Amphiprion ocellaris)

The Black Storm Longfin Clownfish, Amphiprion ocellaris, is a premium captive-bred designer clownfish combining the dramatic black-and-white storm pattern with elegant extended fins. Its flowing finnage, bold dark markings and pearlescent white body make it a standout choice for reef aquariums and high-end marine displays. Each individual can vary in pattern placement and fin shape, giving every fish its own unique appearance while still keeping the hardy, personable nature that makes Ocellaris Clownfish so popular.

Common Name:
Black Storm Longfin Clownfish, Longfin Black Storm Clownfish, Black Storm Longfin Ocellaris Clownfish, Black Storm Clownfish, Designer Ocellaris Clownfish, Ocellaris Clownfish, False Percula Clownfish.

Scientific Name (Latin):
Amphiprion ocellaris

Maximum Size:
Up to around 11 cm in the wild, though most aquarium specimens are usually closer to 7–9 cm.

Water Type:
Marine

Origin / Natural Habitat:
The Black Storm Longfin Clownfish is a captive-bred designer form of Amphiprion ocellaris, developed through selective breeding for both storm-style patterning and extended longfin traits. The natural form of Amphiprion ocellaris is found across the eastern Indian Ocean and western Pacific, including areas around the Andaman and Nicobar Islands, Thailand, Malaysia, Indonesia, Singapore, the Philippines, Taiwan, the Ryukyu Islands and north-western Australia. In the wild, Ocellaris Clownfish live on shallow coral reefs and calm lagoons, usually close to host anemones and protective reef structure.

Water Parameters:
Temperature: 24–27°C
pH Range: 8.1–8.4
Hardness or Salinity: SG 1.020–1.025

Temperament:
Generally peaceful, but can become territorial once settled, especially when kept as a bonded pair or when defending a chosen area of the aquarium. Usually suitable for peaceful to moderately active marine community aquariums. Avoid keeping multiple clownfish pairs together in smaller aquariums, as territorial aggression can develop.

Diet:
Omnivorous. Black Storm Longfin Clownfish are usually easy to feed and will accept a wide range of prepared marine foods. Offer a varied diet including quality marine pellets, flakes, frozen mysis shrimp, enriched brineshrimp, copepod-based foods, finely chopped seafood and occasional algae-based foods. A varied diet will help maintain colour, body condition and natural activity.

Minimum Tank Size:
A practical minimum of around 75 litres is recommended for a single fish or bonded pair, with larger aquariums preferred for mixed reef communities or systems with more active tank mates.

Behaviour & Activity:
An active, confident and interactive clownfish that will usually choose a favourite area of the aquarium and spend much of its time close to that territory. It may host an anemone, but this is not required, and many captive-bred clownfish will instead adopt a coral, rock structure, corner or other sheltered area. The longfin trait gives this fish a more graceful swimming appearance, but strong direct flow should be avoided so the fins are not constantly battered. Like other clownfish, they form a size-based pair structure, with the larger individual becoming female. A secure lid is recommended, as startled marine fish can jump.

Reef Safe:
Reef Safe
Black Storm Longfin Clownfish are considered reef safe and do not normally nip corals or clam mantles. They are suitable for reef aquariums, fish-only systems and mixed marine displays. If they choose to host certain corals, they may occasionally irritate them through constant rubbing, but this is behaviour-related rather than feeding damage.

Special Requirements or Care Notes:
Best kept singly or as a bonded pair. Captive-bred specimens are usually hardy, well adapted to aquarium life and quick to accept prepared foods. Due to the extended fins, avoid aggressive fin-nipping tank mates and monitor fin condition carefully during settling in. An anemone is not essential and should only be added to mature aquariums with suitable lighting, flow and stable water quality. Provide clean, stable marine water, good oxygenation and enough shelter within the aquascape for the fish to establish a secure territory.

Suitable for:
Beginner to Intermediate fishkeepers

Availability:
Designer captive-bred longfin morph / Availability can vary depending on pattern, fin development, size and supplier

All images are a visual representation of the fish you will receive, made to be as accurate as possible. Please note that Mother Nature is a wonderful thing, and variation in patterns and colours will occur — that is part of the unique beauty of these animals.