Catfish of the Month Right Arrow March 2006 • Article © Chris Ralph, uploaded March 01, 2006



Hognose Brochis, Brochis-Panzerwels (Germany), Long-finned Brochis - Brochis multiradiatus   (Orcés V., 1960)

UK catfish judge and frequently featured writer in aquatic magazine circles, Chris Ralph introduces this months featured catfish.

Brochis multiradiatus is one of the largest of the Brochis group of catfish and is very popular amongst a number of catfish enthusiasts myself included. Unfortunately it is not commonly available to the hobbyist. When this truly majestic catfish is available expect to pay £15-£25 for an adult fish. When observing these catfish the aquarist is taken in by the ability of this catfish to almost "wink" at you (Brochis multiradiatus along with its close cousins the "Cory's" can roll its eyes).

As with all the other Brochis that I have had the pleasure to keep over the years, Brochis multiradiatus readily accepts a mixed and varied diet. I personally feed all of my Brochis on sinking catfish pellets, good quality flake foods, granular foods, cultured whiteworm and frozen foods such as bloodworm to name but a few.

The base colour of the body and head varies from a dull brownish/grey to bluish or greenish metallic coloured. The lower half of the ventrolateral body scutes can be light yellow to light pink in colour. A good specimen will have a true emerald green colouration to the flanks and dorsal area, with a pinkish tinge to the ventral region. There can be a presence of colour in the fins of juveniles, but this disappears as the fish matures leaving perfectly clear fins in an adult. The pectoral fin spines are coloured.

I would suggest a minimum size of 30'' x 15'' X 12'' for a shoal of these fascinating catfish. The preferred substrate for keeping these catfish should be good quality aquarium sand such as BD Aquarium Sand, or very smooth rounded gravel in order to prevent their barbels from being damaged. The aquarium should provide some shelter in the form of rocks, bogwood and aquatic plants. As with all other species of fish, water quality and general husbandry is very important, and I would recommend that a minimum of 25% water is changed on a fortnightly basis.


Copyright information for the images used in this article can be found on the species' full Cat-eLog page.

Jump to next section Cat-eLog Data Sheet
Scientific Name Brochis multiradiatus  (Orcés V., 1960)
Common Names Hognose Brochis
Brochis-Panzerwels (Germany), Long-finned Brochis
Type Locality Trib. of Río Lagartococha near town of Garza-Cocha, upper Río Napo system, Prov. Napo, Ecuador.
Synonym(s) Chaenothorax multiradiatus
Pronunciation BROK iss - MULL tee rad ee ATT uss
Etymology Brochis: From the Greek brochis, meaning inkhorn; in reference to the resemblance of the fish to one. multi=many, radiatus= rays, in reference to the number of dorasl fin rays.
Articles
Jump to next section Species Information
Size 100mm or 3.9" SL. Find near, nearer or same sized spp.
Identification The genus Brochis can be distinguished from other corydoradine species by the fact that Brochis have more than 10 rays in the dorsal fin, whilst all other members of the Corydoradinae have 7 rays.

Differs from other species of Brochis by its hog-like snout and from B. splendens by a larger number of dorsal fin rays. The dorsal fin can have 15-18 soft rays; although B. multiradiatus usually has 17.
Sexing Undocumented, although it is presumed mature females are larger and fuller when carrying eggs.
Jump to next section Habitat Information
Distribution South America:Ecuador: Rio Napo
Amazon, Upper Amazon, Napo (click on these areas to find other species found there)
pH 6.0 - 7.2
Temperature 21.0-24.0°C or 69.8-75.2°F (Show species within this range)
Other Parameters Prefers deeper water of at least 18''.
Jump to next section Husbandry Information
Feeding A fish that likes to dig around for food, but will eat all prepared foods that find their way to the substrate. Live bloodworms or tubifex are especially relished - be careful with the tubifex. It can be difficult to feed carefully and if it starts living in the tank water conditions can quickly deteriorate. This can, at least in part, be controlled by offering tubifex in a shallow ceramic bowl.
Furniture Open spaces of substrate and rock or wood refuges slightly elevated to provide the shade these fish like to rest under in rare moments of inactivity. This species will gleefully uproot plants at the first opportunity, use plant pots or other methods of fixing plants in place.
Compatibility An ideal community tank resident, keep in shoals.
Suggested Tankmates Can be kept with most fish. More suitable for keeping with loaches than Corydoras as their larger size helps them compete better for food. Boisterous enough to be kept with more dynamic aquaria. Perfect for an Amazon river biotope.
Breeding Reported by no details survive of the account save it is supposed to spawn in a manner similar to Corydoras.
Breeding Reports There is no breeding report.
Jump to next section Further Information
References Cienc. Nat. (Quito)v. 3 - pp3 - Fig. 1
Registered Keepers Keeping this species? Why not .
There are 34 registered keepers, view all "my cats" data.
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There are 10 records of this fish being seen, view them all.
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Last Update 2013 Jul 19 19:07 (species record created: 2006 Mar 01 11:22)

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