Maximum size : 12 cm

Molly - Silver Sailfin - Poecilia latipinna var. "Silver Sailfin" : Complete Fish Profile & Care Guide

Table of contents

Introduction

The Silver Sailfin Molly (Poecilia latipinna) emerges as an exceptional and versatile species among freshwater livebearers. These fish garner considerable favour among aquarium enthusiasts, primarily owing to their resplendent silvery-platinum bodies. They represent an excellent choice, particularly for beginners, owing to their robust constitution, straightforward maintenance requisites, and the manifestation of distinct personalities and behaviours.

These spirited and sociable creatures generally exhibit placid dispositions. However, under conditions of overcrowding or cohabitation with more assertive tankmates, occasional aggressive tendencies may surface. Consequently, it is imperative to allocate adequate space and thoughtfully select compatible companions for the aquarium, such as Corydoras Catfish, Danios, Dwarf Gouramis, Cherry Barbs, Rasboras, Rosy Barbs, Platies, Tetras, and Loaches. Notably, it is advisable to maintain a predominantly female shoal, as males often exhibit proclivities towards harassing and distressing females. To fully appreciate their social dynamics and unique attributes, it is recommended to maintain a group comprising four or more individuals.

The creation of an optimal habitat for Silver Sailfin Mollies necessitates housing them in an aquarium with a minimum capacity of 100 litres. Thriving in tropical temperatures, it is essential to maintain water parameters within a slightly acidic to slightly alkaline range to ensure a stable environment, given the sensitivity of these fish to temperature and pH fluctuations. Silver Sailfin Mollies typically thrive in conditions characterized by moderate water hardness.

Mollies exhibit a predilection for well-vegetated surroundings, particularly along the periphery of the aquarium, where they can find refuge and cover. This design not only caters to their habitat needs but also offers ample swimming space for other aquatic inhabitants. Consideration should be given to the incorporation of rapidly growing aquatic flora extending to the water's surface, as this fosters the establishment of an ideal aquatic ecosystem.

Molly - Silver Sailfin Photos

Sexual Dimorphism

Differentiating between male and female Silver Sailfin Mollies proves to be a straightforward task. Males are identified by their slightly larger size and the conspicuous presence of a pointed anal fin, commonly known as the gonopodium. In contrast, females exhibit a slightly smaller physical profile relative to males, showcasing rounded abdominal contours and an anal fin distinguished by a fan-like configuration, as opposed to the pointed structure seen in males. These distinguishing features are readily discernible to the observant aquarist, adding an element of intrigue and fascination to the task.

Quick Facts

Scientific NamePoecilia latipinna var. "Silver Sailfin"
Year Described1821
KingdomAnimalia
ClassificationActinopterygii
OrderCyprinodontiformes
FamilyPoeciliidae
GenusPoecilia
Origins
Max Size12 cm
TemperamentPeaceful
Aquarium LevelAll Levels
DifficultyBeginner - Intermediate
ShoalingYes
Best kept asGroups 6+
Diet & FeedingOmnivore
ReproductionLivebearer
Average LifespanUp to 5 Years

Water Parameters

Water TypeFreshwater/Brackish
pH 6.5 - 8.5
GH 15 - 35
Ideal Temperature
72 - 79
22 - 26

Natural Habitat

Sailfin Mollies are native to both freshwater and brackish aquatic ecosystems along the Eastern coast of the United States. Their habitat ranges from North Carolina in the northernmost region to Florida in the south and extends further along the Gulf of Mexico to Texas, ultimately reaching as far south as the Yucatán Peninsula in Mexico.

Although wild populations of Mollies have experienced a gradual decline within the hobbyist community, the primary source of these fish currently originates from breeding and distribution centres situated in Eastern Europe and the Far East. Nevertheless, Mollies have traversed international boundaries, establishing new habitats in various countries, including the United States, Japan, Singapore, and select regions within Eastern Europe.

Within their indigenous ecosystems, Mollies exhibit a proclivity for shallow aquatic regions located within rivers and streams characterized by sandy substrates. These aquatic environments are often enriched with rocks, debris, and interspersed aquatic vegetation.

It is worth highlighting that the shiny hues of the Silver Sailfin Molly serve as a testament to human cultivation, as this particular colour variant has been selectively bred and is not naturally occurring in their wild counterparts.

Breeding

The reproductive process of Silver Sailfin Mollies can be effectively managed through the establishment of ideal water conditions. However, it is imperative to acknowledge that these fish adhere to a traditional livebearer reproductive strategy, which is frequently characterized by persistent courtship behaviours exhibited by males towards females. 

To mitigate such behaviours, it is advisable to maintain a female-to-male ratio that favours a higher number of females for every male present.
The creation of a well-conceived aquarium environment featuring densely planted areas holds paramount importance in this context. Such an environment not only fosters a sense of security among Mollies but also facilitates the birthing process and provides protective cover for the fry, thereby enhancing the survival rate of the offspring.

Following a gestation period lasting approximately eight weeks, it is not uncommon for substantial broods, sometimes numbering up to 120 fry, to be produced. Nevertheless, it is worth noting that adult Mollies often exhibit predatory behaviour towards their young, necessitating the imperative practice of relocating pregnant females to a designated breeding tank. This precautionary measure ensures a secure environment for the birthing process before the females are reintroduced into the primary aquarium. 

The use of breeding traps or nets should be avoided, as their limited size renders them unsuitable for the proper care and growth of the fry. The fry themselves are relatively sizable at birth and readily accept powdered flake food or baby brine. Successfully rearing Mollie fry to maturity demands a high degree of dedication and meticulous attention to detail. Nonetheless, the rewards derived from observing their growth and flourishing development undeniably justify the effort expended.

Diet & Feeding

Silver Sailfin Mollies are distinguished by their omnivorous dietary inclination, mirroring their natural consumption of detritus and zoobenthos in their wild habitat. Within a controlled environment, these fish readily accept a diverse array of sustenance, encompassing high-quality flake food, live organisms, and frozen alternatives. It is noteworthy, however, that a substantial portion of their nutritional intake should consist of plant-based components, exemplified by items such as blanched spinach, zucchini, or vegetable-based flakes. The provision of a comprehensive and nutritionally balanced diet plays an instrumental role in safeguarding the overall well-being of Silver Sailfin Mollies and nurturing their optimal growth and developmental trajectory.

Other Mollies

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