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Poecilia sphenops, commonly known as the Molly fish, is a species of freshwater and brackish water fish belonging to the family Poeciliidae. Native to Central and South America, these live-bearing fish are highly popular in the aquarium trade due to their hardiness, diverse color forms, and ease of breeding. Wild forms typically exhibit a silvery-grey coloration, but selective breeding has produced a vast array of color morphs, including black, white, orange, and various patterned varieties. They are known for their adaptability to varying water conditions, including slightly saline environments.
Ciri Fisik
- Bentuk tubuh
- compressed
- Warna
- Wild type: Silvery-grey with iridescent scales. Cultivated varieties: Black (Black Molly), white (Platinum Molly), orange (Orange Molly), dalmatian, marbled, and various other patterns. Males often have more vibrant coloration and larger dorsal fins.
- Jenis sisik
- cycloid
- Posisi mulut
- superior
- Ciri khas
- Livebearer (gives birth to live young), Sexual dimorphism: Males are generally smaller, possess a modified anal fin called a gonopodium for reproduction, and often have more elaborate dorsal fins. Females are larger and rounder., Can tolerate brackish water conditions.
- Sirip punggung
- Single dorsal fin, typically rounded or slightly elongated, especially in males of some cultivated varieties.
- Sirip ekor
- Rounded or lyre-shaped (in some cultivated varieties like Lyretail Mollies).
- Sirip dada
- Small, fan-shaped, located just behind the gills.
- Sirip khas
- Males possess a gonopodium, a rod-like modification of the anal fin used for internal fertilization.
Tips Identifikasi
Body Shape
Laterally compressed body, somewhat elongated, with a relatively small head.
Fin Structure (Males)
Males have a distinct gonopodium (modified anal fin) and often a larger, more elaborate dorsal fin compared to females.
Coloration
While wild types are silvery-grey, the vast array of cultivated colors (black, white, orange, spotted) is a key identifier for aquarium strains.
Livebearing
The most definitive characteristic is their livebearing reproduction, where females give birth to fully formed, free-swimming fry.
Habitat
- Jenis air
- freshwater
- Kedalaman
- Typically found in shallow waters, near the surface or among vegetation.
- Lingkungan
- Found in a variety of habitats including coastal brackish waters, estuaries, slow-moving rivers, streams, and canals. They prefer areas with dense vegetation for cover and feeding. Can tolerate a wide range of salinity, from pure freshwater to nearly full marine conditions.
- Sebaran geografis
- Native to Central and South America, ranging from Mexico to Colombia. Introduced populations exist in various parts of the world due to aquarium releases.
Informasi Akuarium
- Tingkat perawatan: beginner
- Temperamen: peaceful
- Pola makan: omnivore
- Ukuran akuarium minimum: 10 gallons (38 liters)
- Suhu: 72-82°F (22-28°C)
- Tingkat pH: 7.0-8.5
- Kesadahan: 10-25 dGH
- Kompatibilitas: Generally compatible with other peaceful community fish of similar size. Avoid fin-nippers or overly aggressive species. Can be kept with other livebearers, tetras, rasboras, and some peaceful cichlids.
- Kebutuhan khusus: Mollies appreciate a well-planted tank with open swimming areas. They benefit from the addition of aquarium salt (1-2 teaspoons per gallon) in freshwater tanks, especially for black mollies, as it can help prevent diseases like Ich and improve overall health. They are prolific breeders, so be prepared for fry if keeping males and females together. A varied diet including high-quality flake food, spirulina, and occasional live or frozen foods is recommended.
Informasi di Alam Liar
- Status konservasi: least concern
- Musim: Breeds year-round in suitable conditions; no specific seasonal patterns for wild populations due to tropical distribution.
- Harga pasar: Low to moderate, depending on morph and size
- Nilai ekonomis: high
- Rasa: Not typically consumed
- Tekstur: Not typically consumed
- Nilai gizi: Not typically consumed
Fakta kunci
Livebearersbehavior
Molly fish are livebearers, meaning they give birth to live, free-swimming young rather than laying eggs. This makes them relatively easy to breed in captivity.
Brackish Water Toleranceinteresting
Unlike many freshwater fish, Mollies have a remarkable ability to adapt to and thrive in brackish (slightly salty) water, and some species can even tolerate full marine conditions.
Color Diversityamazing
Through selective breeding, Mollies have been developed into an astonishing array of colors and fin shapes, far beyond their wild silvery-grey appearance, making them highly popular in the aquarium hobby.
Algae Eatersbehavior
Mollies are known to graze on algae in the aquarium, making them a beneficial addition for tank maintenance, though they should not be relied upon as the sole solution for algae control.
Informasi keamanan
Aman- Tingkat keamanan: safe
- Berbisa: Tidak
- Kelayakan konsumsi: not recommended
- Catatan penanganan: Molly fish are harmless to humans. When handling for aquarium maintenance or transfer, use a soft net to avoid damaging their fins or scales. Minimize out-of-water time to reduce stress.
Spesies serupa
Guppy
Poecilia reticulata
Guppies are generally smaller, have more elaborate and colorful caudal fins (especially males), and typically prefer pure freshwater. Molly males have a less flamboyant caudal fin and a more robust body.
Platy
Xiphophorus maculatus
Platies are typically more compact and rounded in body shape, and their caudal fin is usually fan-shaped without the lyre-tail variations seen in some mollies. Platies also tend to have a more pronounced 'sword' on the caudal fin of males in some related species (swordtails), though not in P. maculatus itself.
Sailfin Molly
Poecilia latipinna / Poecilia velifera
Sailfin Mollies are distinguished by their significantly larger, sail-like dorsal fin, especially prominent in males. P. sphenops has a much smaller, more rounded dorsal fin.
Klasifikasi ilmiah
- Kerajaan
- Animalia
- Filum
- Chordata
- Kelas
- Actinopterygii
- Ordo
- Cyprinodontiformes
- Famili
- Poeciliidae
- Genus
- Poecilia
- Spesies
- sphenops
Jelajahi Molly Fish
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