Prognathodes aculeatus

Datasheet

General DescriptionThe Longsnout Butterflyfish, scientifically known as Prognathodes aculeatus, belongs to the Chaetodontidae family. These fish are recognized for their captivating patterns and vibrant colors, distinguishing them from Angelfish by the absence of spines on their head. They are found in the Western Atlantic, spanning from southern Florida and the western Gulf of Mexico to the West Indies-Caribbean region and Venezuela.

Aquarium SuitabilityConsidered suitable for aquariums with care, Longsnout Butterflyfish are hardy creatures that require a minimum tank size of 300 liters. They thrive when provided with ample space for swimming and abundant hiding spots among live rocks. It's important to note that these fish have a fun and engaging personality, often displaying interesting behaviors. They are mostly peaceful, although they may exhibit aggression towards similar species.

Care and HardinessRequiring frequent feeding multiple times a day, especially when newly introduced, Longsnout Butterflyfish must be provided with a varied diet. They do well feeding on larger crustaceans, invertebrates, zooplankton, and small crustaceans. These fish flourish best when kept individually in an aquarium setup that mirrors their natural habitat.

Reef SuitabilityLongsnout Butterflyfish are often considered reef safe, but caution is advised as they can be a threat to small crustaceans, clams, tubeworms, and sea urchins. Their compatibility with reefs depends on the presence of suitable prey items in the habitat.

Aquarium SetupWhen setting up an aquarium for Longsnout Butterflyfish, it is essential to provide a tank with appropriate water conditions, including a temperature range of 22.2-25.6 degrees Celsius, a pH level of 8.1-8.4, and a specific gravity of 1.020-1.025. Ensuring good water quality and offering a diverse array of live rocks and hiding places are vital for their well-being.

BehaviourThese fish are known for their playful and inquisitive nature, often exploring their surroundings and exhibiting unique behaviors. They tend to be peaceful towards other tank mates but may display territorial behavior towards similar species if not kept in a suitable pair.

Feeding and DietLongsnout Butterflyfish have a diverse diet that includes larger crustaceans, other invertebrates, small crustaceans, and zooplankton. Feeding them a variety of foods ensures their nutritional needs are met and promotes their overall health and vitality.

DimorphismIn terms of dimorphism and captive reproduction, Longsnout Butterflyfish exhibit minimal sexual dimorphism, making it challenging to distinguish between males and females in aquarium settings. Captive breeding of these fish is not commonly reported due to their specialized dietary requirements and behaviors.

Habitat and DistributionFound primarily in the Mexican Gulf and the Western Atlantic, Longsnout Butterflyfish inhabit coral reefs and rocky crevices along the coastlines of southern Florida, the Gulf of Mexico, the West Indies-Caribbean region, and Venezuela. Their natural habitat influences their care needs and behavior when kept in aquarium settings.