Common name: Spotfin frogfish
General information
The Coin-Bearing Frogfish, scientifically known as Antennatus nummifer, is a fascinating species known for its unique appearance and incredible camouflage abilities. This species is part of the Antennariidae family, which includes various species of frogfish. The Coin-Bearing Frogfish is named for the circular, coin-like spots that adorn its body, making it a visually striking addition to any aquarium.
Frogfish in general are ambush predators, using their modified pectoral fins to walk along the substrate and their lure-like appendage, called an esca, to attract prey. The Coin-Bearing Frogfish is no exception, and it is known for its patient hunting strategy, often remaining motionless until an unsuspecting prey comes within reach.
Details
- Recommended minimum tank volume
- 75 liter (20 gallons)
- Salinity
- S.G. 1.020 to 1.025
- Temperature
- 22 to 26 °C (72 to 79 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 10 cm (4″)
- Care level
- Moderate to easy
- Diet
- Carnivore
- Social
- Solo
- Reefsafe
- Yes
- Aggression
- Semi aggresive
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderAnglerfishLophiiformes
- FamilyFrogfishAntennariidae
- GenusFrogfishAntennatus
- SpeciesSpotfin frogfishAntennatus nummifer (Cuvier, 1817)
- SynonymsAntennarius japonicus Schultz, 1964Antennarius mummifer (Cuvier, 1817)Antennarius nummifer (Cuvier, 1817)Antennarius sanguifluus Jordan, 1902Chironectes chlorostygma Valenciennes, 1837Chironectes nummifer Cuvier, 1817
Care
Caring for Antennatus nummifer requires an understanding of its predatory nature and need for suitable hiding spots. An aquarium with live rock formations and ample space for the frogfish to maneuver is essential. They can be fed a diet of live or frozen foods, such as shrimp or small fish, but care should be taken to ensure that tank mates are not small enough to be considered prey.
Reproduction
Reproduction in frogfish is a unique spectacle, with females releasing a ribbon-like mass of eggs into the water column, which is then fertilized by the male. In the aquarium, breeding Antennatus nummifer can be challenging due to their solitary nature and specific mating behaviors.
Habitat
Antennatus nummifer is found in tropical and subtropical waters across the Indo-Pacific region. They are benthic dwellers, often found on coral reefs, rocky substrates, or among sponges at depths ranging from shallow waters to about 100 meters. Their ability to blend into their surroundings makes them both fascinating and challenging to spot in the wild.