Anus Spot Lampeye Killifish Care Guide
Poropanchax stigmatopygus · Freshwater Fish

What Anus Spot Lampeye Killifish look like
The Anus Spot Lampeye Killifish, scientifically known as Poropanchax stigmatopygus, exhibits a diminutive and slender fusiform body shape, typically measuring between 1 to 1.5 inches in maximum adult size. The species is characterized by its translucent body, which presents a gradient of coloration from tan to olive, providing effective camouflage in its natural habitat. A distinctive feature of this species is the bright iridescent blue-green pigmentation of the upper half of each eye, which emits a luminescent quality reminiscent of a tiny lamp, serving both as a visual signal and a deterrent to potential predators. Sexual dimorphism is subtle, with males often displaying slightly more vivid coloration and larger eyes compared to females. Defensive adaptations include its small size and the ability to inhabit surface waters, where it can evade larger predatory fish. The species lacks prominent lateral lines but possesses well-developed fins, including a dorsal fin that is situated towards the rear of the body, enhancing its agility in the water column.
Behavior & temperament
The Anus Spot Lampeye Killifish is a social species that typically exhibits a schooling behavior, preferring to dwell in the upper strata of the water column, where it can be observed darting among aquatic vegetation. This species is generally peaceful and exhibits a non-aggressive temperament, making it suitable for community tanks with similarly sized fish. Breeding behavior is characterized by egg scattering, with females releasing eggs among plants or substrate, where they adhere and develop. The species thrives in well-planted environments that provide both cover and breeding sites, and it is known to exhibit a degree of territoriality during breeding periods, particularly among males.
Diet & feeding
In the wild, the Anus Spot Lampeye Killifish is an omnivore, feeding on small invertebrates, algae, and detritus. In captivity, it requires a varied diet that includes high-quality flake food, live or frozen foods such as brine shrimp and daphnia, along with plant matter to ensure optimal health.
Behind the name
Poropanchax (from Greek 'poro' meaning 'to pass through' and 'panchax' referring to a group of small fish); stigmatopygus (from Greek 'stigma' meaning 'mark' and 'pygus' meaning 'rump', referring to the distinctive markings on the body).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Anus Spot Lampeye Killifish?
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