Parasphaerichthys Ocellatus

Datasheet

General Description

Known as the Eyespot Gourami and scientifically labeled as Parasphaerichthys Ocellatus, this rare species is a member of the Osphronemidae family under Perciformes classification. It is distinguishable from its congener P. lineatus by its larger body size, presence of ocellus-type markings on each flank, among other characteristics. This species, sometimes traded as 'mini chocolate gourami' or 'Burmese chocolate gourami,' is unique in its genus, noted for the distinctive spiral ridges on its eggs and possessing a labyrinth organ for breathing atmospheric air.

Aquarium Setup

For optimal care, the P. ocellatus thrives in a well-planted aquarium with soft substrate, allowing the addition of driftwood, roots, floating plants, and leaf litter to mimic its natural habitat. It prefers a subdued water flow and clear water conditions. Additionally, providing refuges such as plastic piping is advised when setting up its tank to create a structurally complex environment. Refer to the table for specific water condition requirements.

Behaviour

Displaying a slow-moving and retiring nature, this species may be intimidated or outcompeted by larger tankmates. While not forming schools, they benefit from interaction with conspecifics, with a recommended group size of at least 6 individuals to observe their more intriguing behaviors. Peaceful companions like Danionella, Microdevario, Rasbora species, or small loaches are suitable tankmates.

Feeding and Diet

As micropredators, P. ocellatus primarily feeds on small aquatic crustaceans, worms, insect larvae, and zooplankton. They may initially reject prepared foods but can eventually be trained to accept them. A diet comprising small live or frozen fare like Artemia nauplii, Daphnia, and micro worms is crucial for their ideal coloration and conditioning.

Reproduction & Dimorphism

Breeding this species requires a careful setup with floating cork bark and camera film containers to encourage bubble nest building. Males guard the nest while females patrol the area, with eggs hatching in 3-5 days. Fully-grown females are visibly larger and thicker-bodied due to eggs. Successful captive breeding has been documented by dedicated hobbyists.

Habitat and Distribution

P. ocellatus is predominantly found in the upper Ayeyarwady River basin in northern Myanmar, near Myitkyina and Lake Indawgyi. The species thrives in slow-moving or stagnant waters amidst submerged vegetation. While the exact range is not fully documented, it likely encompasses the upper-to-middle Ayeyarwaddy region, known for its biodiversity and endemic species.