This should give you all of the information you need. Thanks Planet Catfish
Scientific Name: Asterophysus batrachus Kner, 1858
Common Name(s): Ogre Catfish
Type Locality: Marabitanos, Brazil.
Pronunciation: Ass TERR oh fye suss - bat RACK uss
Etymology: Asterophysus: From the Greek aster, meaning star and physa,
meaning bellows; in reference to the blind viliform processes
around the periphery of the swimbladder characteristic of this
genus.
Size: 280mm (11") SL
Identification: The trapdoor like 'salmonesque' lower jaw is this species best
external / visual characteristic.
Sexing: The leading rays of the male's anal fin are fused to form a
urinogenital organ used (at least in related genera) in internal
fertilization of the female. This modification of the anal fin does not
manifest itself until the male is approaching adulthood.
Distribution: South America: Orinoco and Rio Negro basins. Amazon, Middle
Amazon, Negro (click on these areas to find other species found
there) Orinoco (click on these areas to find other species found
there)
pH: 5.6 - 7.0
Temperature: 24.0-29.0°C or 75.2-84.2°F
Other Parameters: A blackwater species.
Feeding: These fish will literally try and eat anything. Krill appears a real
favourite, but all foods are accepted. The fish becomes more active
during the day when not recently fed, feeding should be as with
large pimelodids, less and less frequent with age. You would expect
to feed an adult weekly. This may not be possible in tanks where
the fish is kept with other species and so the fish should be fed
smaller regular portions of food which may reduce its activity during
the day.
Furniture: The fish like to rest and hide in driftwood piles during the day but
should be given at least 3 quarters of the aquarium as open
swimming room for nocturnal prowling. Tall plants can also be used
to coax the fish out during daylight feeding time in less stark
surroundings. Choice of substrate is unimportant.
Compatibility: Obviously care is required in housing fish with this species. Fish
large enough not to be eaten but non-predatory to the point
they will not eat the Asterophysus.
Suggested Tankmates: Fish large enough not to be eaten (amazingly for this
species, this means at least twice the size of the
Asterophysus, larger is less risky) but non-predatory
to the point they will not eat the Asterophysus.
Larger characins, doradids and loricariids are probably
the best bet.
Breeding: Unreported.