Cat-eLog Right Arrow Bagridae Right Arrow Hyalobagrus

Jump to next section Cat-eLog Data Sheet
Scientific Name Hyalobagrus flavus  Ng & Kottelat, 1998
Common Name Shadow Catfish
Type Locality Danau Arang Arang in the vicinity of Muara Kompeh, 1°37'32"S, 103°47'19"E, Jambi Province, Sumatra, Indonesia.
Pronunciation HI ya low BAG russ - FLAH vuss
Etymology From the greek hyalos, meaning transparent, and bagrus, the name of a catfish genus frequently used to form generic names. The specific epithet comes from the Latin flavus, meaning yellow, in reference to the color in life.
Article - CotM 2004 November
Jump to next section Species Information
Size 45mm or 1.8" SL. Find near, nearer or same sized spp.
Identification The small size, translucent body and black stripe running the entire length of the body is distinctive of members of this genus.
Hyalobagrus flavus is the only species imported for the aquarium trade and is distinguished from congeners in having only half the anterior edge of the pectoral spine serrated.
Sexing Males are more slender and have an elongate genital papilla in front of the anal fin.
When gravid, the ripe ova of the females are greenish and can be seen through the translucent body wall.
General Remarks Normally found hiding under thick mats of floating grass in its natural habitat.
Jump to next section Habitat Information
Distribution Batang Hari drainage in Sumatra and Mentaya drainage in southern Borneo.
Pacific, Greater Sunda Island Rivers, Sumatra Waters, Batang Hari (click on these areas to find other species found there)
Pacific, Greater Sunda Island Rivers, Borneo Waters, Mentaya (click on these areas to find other species found there)

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pH 5.0 - 6.2
Temperature 22.0-27.0°C or 71.6-80.6°F (Show species within this range)
Other Parameters Little or no current preferred.
Jump to next section Husbandry Information
Feeding Readily feeds on live/frozen foods and smaller-sized prepared foods such as micropellets, but shows a preference for the former.
Furniture They do best with plenty of shade (in the form of vegetation), so a heavily planted tank is the ideal setup for these fish.
Compatibility A peaceful, diurnal shoaling species that should be kept in groups of four or more individuals.
Because of their small size and delicate nature, it is best to keep them with less boisterous small or mid-sized fish such as harlequin rasboras (Trigonostigma heteromorpha) and kuhlii loaches (Pangio spp.).
Breeding Not reported although gravid females full of vivid green roe have been documented.
Breeding Reports There is but a single breeding report, read it here.
Jump to next section Further Information
Reference Ichthyological Exploration of Freshwaters v. 9 (no. 4), pp 340, Fig. 6
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Last Update 2019 Oct 30 12:34 (species record created: 2001 Apr 17 00:00)