Approx Max Length : 14cm

Southern Purple Spotted Gudgeon - Mogurnda adspersa Fish Profile & Care Guide

The Southern Purplespotted Gudgeon (Mogurnda adspersa), a rare and relatively peaceful species often imported, may display territorial tendencies, emphasizing the importance of providing a spacious and well-appointed aquarium environment. It is recommended to maintain these fish in small groups for optimal social dynamics.

When selecting tankmates for the Southern Purplespotted Gudgeon, suitable companions may include Barbs, Rainbowfish, Corydoras Catfish, and other robust yet peaceable species. However, careful consideration must be given to avoid pairing them with smaller fish species, as larger individuals are fully capable of preying upon them.

To create an ideal habitat, the aquarium should feature abundant aquatic plants, rock piles, caves, bogwood, and driftwood, effectively establishing visual barriers within the tank. This arrangement helps to mitigate territorial conflicts and allows for the successful cohabitation of multiple specimens. Additionally, as the Southern Purplespotted Gudgeon is averse to strong currents, it is advised to maintain minimal water movement. To prevent any potential escapes, it is crucial to securely cover the tank, as these fish are known for their jumping ability.

In terms of physical characteristics, the Southern Purplespotted Gudgeon typically exhibits a predominantly dark brown colouration on its upper body, gradually transitioning to lighter shades on the sides and underside, which range from light brown to cream. Notably, three red bars adorn each cheek, while red, purple, black, and white spots are prominently distributed along the sides of these fish. These spots become more pronounced during breeding conditions.

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Sexual Dimorphism

Distinguishing between male and female Southern Purplespotted Gudgeons is a relatively straightforward task. During the breeding season, male individuals exhibit a significantly enhanced colouration, which sets them apart. Additionally, males possess elongated and brightly coloured genital papillae, along with a discernible slight nuchal hump, further aiding in their identification.

Male Female

Quick Facts

Scientific Name	Mogurnda adspersa
Year Described	1878
Kingdom	Animalia
Classification	Actinopterygii
Order	Gobiiformes
Family	Eleotridae
Genus	Mogurnda
Origins	Australia
Approx Max Size	14 cm
Temperament	Peaceful
Aquarium Level	Middle
Difficulty	Beginner - Intermediate
Shoaling	No
Best kept as	Groups 5+
Diet & Feeding	Omnivore
Reproduction	Egg Depositor
Average Lifespan	Up to 5 Years

Water Parameters

Water Type	Freshwater
pH	6.5 - 8.0
GH	8 - 25

Ideal Temperature Range
℉	60 - 75
℃	16 - 24

Natural Habitat

The Southern Purplespotted Gudgeon, a species characterized by its distinct purple spots, is endemic to the southeastern region of mainland Australia, specifically within the states of South Australia, New South Wales, Victoria, and Queensland. These fish can be found inhabiting the Murray-Darling Basin as well as coastal drainages northeast of the Clarence River. Within their preferred habitat, which encompasses tranquil rivers or creeks, they navigate through underwater vegetation, branches, and rocky structures.

Regrettably, during the latter part of the 20th century, the Southern Purplespotted Gudgeon experienced a significant population decline, leading to local extinctions in certain areas. However, in the 21st century, encouragingly, the species has been rediscovered in South Australia and Victoria. Various state governments and dedicated volunteer organizations have taken proactive measures to bolster the population of these fish through conservation initiatives and concerted efforts.

Breeding

In their natural habitat, Southern Purplespotted Gudgeons engage in spawning activities as mated pairs during the period spanning from November to March, coinciding with a slight increase in water temperatures.

When it comes to breeding these fish in an aquarium setting, it is advisable to utilize a dedicated species tank. The most favourable approach for acquiring a breeding pair is to procure a group of young individuals and allow them to form pairs naturally.

By providing the group with a nourishing and diverse diet, signs of pairing are likely to manifest as the fish reach sexual maturity well before reaching their maximum size.

The spawning process is instigated by the male, who undergoes an intensification of colouration, enticing a female to join him in spawning through an elaborate and often prolonged courtship display. A notable cluster of eggs is deposited on flat surfaces such as rocks, aquatic plants, or even the tank's glass. The male diligently guards and fans the eggs using his pectoral fins.

In cases where the tank dimensions are somewhat confined, the male may direct his aggression towards the female, necessitating the removal of the female to a separate tank to ensure her well-being.

Typically, the eggs hatch within 3 to 9 days, depending on the prevailing water temperature. Once the fry has absorbed their yolk sacs, it is advisable to introduce infusoria as their initial food source, subsequently progressing to larger food items as the fry grows in size.

Diet & Feeding

Southern Purplespotted Gudgeons display a versatile feeding behaviour and readily consume various food options. To ensure their optimal well-being, it is recommended to incorporate a diverse diet comprising both frozen and live foods, such as daphnia and bloodworms, alongside high-quality dried foods. By providing these nourishment choices, the fish can thrive and showcase their beautiful colouration, rewarding the caretaker with a visually appealing display.