Common name: French butterflyfish
General information
The French Angelfish, Prognathodes guyanensis, is a lesser-known but visually striking species in the marine aquarium hobby. It is closely related to the more commonly known French Angelfish (Pomacanthus paru), but it is distinguished by its more elongated body shape and distinctive coloration. The body of Prognathodes guyanensis is primarily yellow with a series of narrow, vertical blue bands, and a prominent black spot on the forehead.
This species is not as commonly available as other angelfish, making it a unique addition for the dedicated hobbyist. It is also known for its more peaceful demeanor compared to some of its relatives, which can be more aggressive.
Details
- Recommended minimum tank volume
- 150 liter (40 gallons)
- Salinity
- S.G. 1.020 to 1.025
- Temperature
- 24 to 27 °C (75 to 81 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 15 cm (6″)
- Care level
- Moderate to easy Prefers complex rockwork
- Diet
- Carnivore Enjoys mysis and brine shrimp
- Social
- Pair Pairs are often monogamous
- Reefsafe
- Yes
- Aggression
- Semi aggresive May be territorial
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerch-like FishesPerciformes
- FamilyButterflyfishChaetodontidae
- GenusLongnose ButterflyfishPrognathodes
- SpeciesFrench butterflyfishPrognathodes guyanensis (Durand, 1960)
- SynonymsChaetodon goniodes Woods, 1961Chaetodon guyanensis Durand, 1960Chaetodon guyanensis durand , 1960
Care
Prognathodes guyanensis requires a spacious aquarium with plenty of rockwork and hiding places to feel secure. A mature, stable tank is essential, as this species can be sensitive to fluctuations in water quality. They are omnivores, so their diet should include a variety of foods such as marine algae, mysis shrimp, and high-quality angelfish preparations that contain sponges.
While they are generally peaceful, they can be territorial, especially towards conspecifics or similar-looking fish. It is best to keep them singly or in a mated pair, and they should be introduced to the aquarium at the same time to reduce aggression.
Reproduction
In the wild, Prognathodes guyanensis forms monogamous pairs during the breeding season. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. Raising the larvae in captivity is challenging due to their planktonic nature and the need for very small, specialized food during the early stages of development.
Habitat
The French Angelfish is found in the Western Atlantic, from the Caribbean Sea to the northern coast of South America. They inhabit coral reefs and rocky outcrops, often seen at depths ranging from 15 to 60 meters. In the aquarium, replicating their natural environment with a variety of live rock formations will help promote natural behaviors and overall health.