Species description

Care, breeding and tankmates

Fish profile

Temperament

Peaceful

They possess a generally peaceful and confident temperament, making them excellent community fish. While peaceful, they can hold their own against mildly aggressive tank mates without becoming bullies themselves. Providing adequate swimming space prevents pacing behaviors and significantly reduces overall stress.

Diet

Omnivore

As natural planktivores, they prefer feeding on suspended particulates in the water column rather than grazing on rocks. Offer them a varied diet of frozen mysis shrimp, high-quality marine flakes, and finely chopped seafood. Incorporating spirulina-enriched brine shrimp helps keep their immune system strong and colors vibrant.

Sex ratio

Harem

Sexual dimorphism is apparent: males display bold horizontal black stripes and elongated pelvic fins, while females possess thicker, less uniform stripes. Like other members of their genus, they have the ability to change sex from female to male. They are ideally kept as solitary individuals or in a harem of one male and multiple females.

Feeding frequency

THREE_FOUR_DAILY

They possess a high metabolism and small stomach, requiring multiple small feedings per day. Aim to feed them at least three times daily to ensure they receive adequate caloric intake. Using an automatic feeder to dispense high-quality pellets can be very helpful in maintaining their feeding schedule.

Bioload

Lamarck's Angelfish produces a substantial bioload, characteristic of active, medium-to-large marine fish. Excellent water quality must be maintained through the use of a powerful protein skimmer and robust biological filtration. Consistent water changes are vital to prevent the buildup of nitrates and maintain optimal reef conditions.

Flow

Strong

They thrive in aquariums with moderate to strong, turbulent water flow that mimics oceanic currents. Strong flow ensures that their planktonic food remains suspended in the water column where they prefer to feed. Ample water movement also promotes high oxygenation, which is crucial for their active lifestyle.

Jump risk

Yes

They have a moderate tendency to jump, particularly during their initial acclimation period or if spooked by aggressive tank mates. A secure, tight-fitting mesh screen is strongly advised to prevent tragic losses. Avoid sudden lighting changes, which can easily trigger a startled jumping response.

Reproduction

Oviparous

Captive breeding is extraordinarily difficult and has only been achieved by a handful of specialized commercial facilities. They are pelagic spawners, broadcasting their gametes into the water column during elaborate courtship dances. The resulting planktonic larvae demand incredibly specific microscopic foods to survive their first weeks of life.

Compatibility & tankmates

Reef safe

They are widely considered to be highly reef-safe, rarely bothering corals or sessile invertebrates. They do well in peaceful to semi-aggressive community tanks alongside tangs, wrasses, and clownfish. Care should be taken to avoid housing them with overly dominant angelfish that may view them as rivals.

Tank level

Middle/Bottom

They are highly active, open-water swimmers that utilize the middle and upper levels of the aquarium. A tank length of at least six feet is recommended to provide them with the long, unobstructed swimming lanes they require. Ensure the rockwork is low enough to provide maximum swimming space while still offering some caves for shelter.