Approx Max Length : 3cm

Roloff's Pygmy Barb - oreichthys parvus Fish Profile & Care Guide

Roloff's Pygmy Barbs (oreichthys parvus) is a captivating and relatively rare species sought after for their small size, attractive appearance, and timid demeanour. While they can be a delightful addition to nano or well-planted aquariums housing other small temperate species, it is crucial to note that due to their delicate nature and diminutive size, they are not recommended for general community aquariums.

Despite their occasional confusion with the Indian Hi Fin Barb, trained enthusiasts can easily distinguish Roloff's Pygmy Barbs due to their smaller size. When selecting suitable tankmates, it is advisable to opt for other tranquil Dwarf Barbs, such as the Eight Banded False Barb, Golden Dwarf Barb, and the exquisite Butterfly Barb. Additionally, small Cyprinids like Chilli Rasbora, Vietnamese Cardinal Minnows, and smaller Danios, such as the Dwarf Spotted Danio, can coexist harmoniously.

Other compatible options include smaller Tetras, Corydoras Catfish, and Otocinclus. However, it is essential to avoid housing Roloff's Pygmy Barbs with more significant, aggressive, or boisterous fish, as they are slow feeders and can be easily intimidated.

Creating an ideal habitat for these Barbs entails a fully-decorated aquarium with abundant aquatic plants and strategically placed woody arrangements using bogwood or driftwood. Adding floating plants can help reduce the intensity of light entering the aquarium. Gentle water flow and filtration are preferred, while a soft substrate provides an ideal environment for these fish.

Roloff's Pygmy Barbs possess silvery bodies with a distinctive dark crescent-shaped mark at the base of each scale. Furthermore, they exhibit a dark blotch at the base of the caudal fin, one at the tip of the dorsal fin, and one along the anterior margin of the anal fin.

In breeding conditions, males of Roloff's Pygmy Barbs display a vivid red dorsal fin, where the otherwise typical black spot becomes inconspicuous, along with a red pelvic fin. All other fins remain translucent during this phase.

Availability

The Roloff's Pygmy Barb isn't avilable any of our marketplace shops, want to be the first to offer it?.

Photos

Sexual Dimorphism

Accurately discerning the gender differences among Roloff's Pygmy Barbs is a straightforward undertaking. Males manifest distinctive traits that distinguish them from their female counterparts. These traits include a slightly larger size, more vivid and vibrant colouration, as well as an elongated dorsal fin.

In contrast, females tend to be smaller in size, exhibit more subdued colouration, and possess a deeper body shape compared to males. By keenly observing these discernible features, aquarists can effortlessly identify and distinguish the genders within this species.

Quick Facts

Scientific Name	oreichthys parvus
Year Described	1933
Kingdom	Animalia
Classification	Actinopterygii
Order	Cypriniformes
Family	Cyprinidae
Genus	Oreichthys
Origins	Laos Thailand
Approx Max Size	3 cm
Temperament	Peaceful
Aquarium Level	Middle
Difficulty	Beginner - Intermediate
Shoaling	Yes
Best kept as	Groups 8+
Diet & Feeding	Omnivore
Reproduction	Egg Depositor
Average Lifespan	Up to 5 Years

Water Parameters

Water Type	Freshwater
pH	6.5 - 7.5
GH	4 - 12
TDS	90 - 268

Ideal Temperature Range
℉	75 - 82
℃	23 - 27

Natural Habitat

Roloff's Pygmy Barbs exhibit an endemic distribution, primarily confined to the northern Malay Peninsula and the Mekong River Basin, spanning across Laos and Thailand within the Southeast Asian region. These particular Barbs demonstrate a preference for inhabiting areas of clear, slow-flowing water within hill streams.

Breeding

Regrettably, the available knowledge regarding the breeding habits of Roloff's Pygmy Barbs remains limited. However, it is documented that these fish adhere to a spawning behaviour where they affix their eggs under plant leaves, positioning their bellies upward during the process.

Diet & Feeding

Roloff's Pygmy Barbs are esteemed for their highly adaptable feeding habits and relatively undemanding dietary preferences. While they readily consume high-quality dried foods suitable for their size, offering a more diverse menu is advisable to promote optimal health and vibrant colouration in these fish.

Incorporating a daily selection of small live, frozen, and freeze-dried foods such as artemia, daphnia, and Tubifex is strongly recommended. This diversified feeding regimen enhances the Barbs' overall well-being and stimulates their innate breeding instincts.

By providing a wide array of nutritious options, aquarists can ensure the prime condition and appearance of their Roloff's Pygmy Barbs while fostering an environment conducive to encouraging natural breeding behaviour.