Iksookimia Pumila

Datasheet

General Description

Iksookimia pumila, also known as Dwarf Cobitis, is a species belonging to the family Cobitidae, native to South Korea. It is characterized by its small size, reaching up to 8.0cm in length. This species prefers habitats in small, shallow rivers and streams with moderate to fast currents, often with substrates of rocks, sand, and gravel, and clear, oxygen-saturated water.

Aquarium Setup

When setting up an aquarium for Iksookimia pumila, it is essential to maintain clean and well-oxygenated water with a filtration system that provides a turnover rate of 10-15 times per hour. The tank should be equipped with additional powerheads or airstones as needed. Substrate options include gravel, sand, or a mix of both, along with water-worn rocks, pebbles, and driftwood. Although not common in their natural habitat, adaptable aquatic plants like Microsorum, Crinum, and Anubias species can be added to the tank. Regular partial water changes are crucial for maintaining stable water conditions.

Behaviour

Iksookimia pumila exhibits peaceful behavior, both towards conspecifics and other fish species. They are known to prey on eggs or fry but do not harm tankmates. It is advisable to keep them in groups of four or more individuals for their well-being. This species is compatible with small, peaceful cyprinids, current-loving loaches, and rheophilic gobies. However, territorial or aggressive bottom-dwelling fish, such as certain cichlids and loaches, are not suitable tankmates for Iksookimia pumila.

Feeding and Diet

In their natural habitat, Iksookimia pumila primarily feeds on chironomid larvae and benthic invertebrates. In an aquarium setting, they accept sinking dried foods but should also be offered small live and frozen fare like Daphnia, Artemia, and bloodworms to ensure a varied diet, promoting optimal health.

Reproduction & Dimorphism

There is limited information on the reproductive behavior of Iksookimia pumila, with no known instances of captive breeding. Mature males exhibit an extended first pectoral-fin ray and a distinct lamina circularis at the base of the second ray. Adult females are typically larger and heavier-bodied compared to males.

Habitat and Distribution

Endemic to South Korea, Iksookimia pumila is found in the Baek River drainage in the southwestern part of the country. Its habitat preference includes small, shallow rivers and streams with fast currents, rocky substrates, and clear, oxygenated water. Despite its restricted distribution, the species faces challenges due to human activities like dam construction impacting its natural habitat.