Persian Killifish (Aphaniops mento) Care Guide
A hardy West Asian killifish of hard alkaline waters, with iridescent males and aggressive spawning best suited to a single-species tank.
Compiled by Aquairi from published sources · Published · Updated
Overview
Aphaniops mento is a toothcarp of Western Asia, formerly placed in the genus Aphanius. Males carry iridescent turquoise spots over a darker body. The species is hardy in hard, alkaline water and reaches a maximum total length of about 5 cm.
Taxonomy
- Family: Cyprinodontidae
- Genus: Aphaniops
- Scientific name: Aphaniops mento
- Common synonyms: Aphanius mento, Paraphanius mento, Lebias mento
Habitat
The species is recorded across Western Asia, including Iraq, Israel, Jordan, Lebanon, Palestine, Syria and Turkey. It occupies a wide range of fresh and slightly brackish habitats: springs, streams, coastal lagoons, marshes, irrigation canals, small lakes and rivers, often where dense vegetation and algae grow. It was first described in 1843 with a type locality of Mosul, Iraq.
Tank requirements
- Minimum tank volume: 60 L
- Temperature: 16-28 °C (61-82 °F)
- pH: 7.5-8.5
- GH: 15-30 °dGH
- Lifespan: 3-5 years
Sources report the species tolerates a broad temperature range and unsuitable acidic conditions should be avoided. A winter cool period is beneficial. A single male is best housed with several females.
Diet
It is an omnivore with a vegetarian tendency, grazing on algae and plant matter in the wild. In aquaria it takes Spirulina-based dried foods alongside regular small live or frozen items such as Artemia, Daphnia and bloodworm.
Compatibility
Males are highly aggressive and may fight to the death; unreceptive females can be harmed without sufficient cover and decor. Because it also harasses other species, it is best maintained alone as a single-species group, avoiding long-finned community fish.
Breeding
Like related toothcarps, it is a fractional spawner producing eggs over a long season. Eggs are attached to algae by filaments and incubate for roughly one to two weeks. Free-swimming fry accept Artemia nauplii immediately.
Conservation status
IUCN Red List: Least Concern (assessed 2014).
Aphaniops mento Breeding Guide
Overview
Aphaniops mento, the Persian or pearl-spotted killifish (family Aphaniidae), occurs across the Middle East in Iran, Iraq, Syria, Jordan, Israel, Lebanon and Turkey, where FishBase and Wikipedia report it from a wide range of freshwater habitats including springs, streams, lakes and rivers in shallow vegetated areas. The IUCN lists it as Least Concern. The species was described in 1843 as Lebias mento from Mosul, Iraq.
Sexing
FishBase gives a maximum of about 5 cm. Males are the more strongly coloured sex, carrying the iridescent turquoise spots over a dark body for which the species is named, while females are plainer.
Conditioning
The species feeds on insect larvae, crustaceans and algae, so a mixed diet of small live, frozen and some plant matter conditions it well. FishBase gives a temperature tolerance of 10-25 C, and the fish is hardy in hard, alkaline conditions.
Breeding Setup
A well-planted hard-water tank with fine-leaved plants and algae provides the spawning sites. The broad temperature tolerance allows a cooler winter period followed by warming to cue the breeding season.
Spawning Behaviour & Trigger
FishBase notes the species is not a seasonal (annual) killifish but breeds during the warmer months of the year, with rising temperature acting as the main trigger. As an Aphaniidae toothcarp it deposits eggs on vegetation rather than burying them in substrate.
Egg & Fry Care
Eggs are laid on plants and can be left in a low-predation tank or moved for separate incubation in water from the parents' aquarium. Free-swimming fry take small live foods such as newly hatched brine shrimp.
Common Challenges
Predation of eggs and fry by adults is the main risk, addressed by dense planting or removing the spawning medium. Hard, alkaline, stable water and warm-season triggering give the most reliable spawning.