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Down arrow Cat-eLog Data Sheet
Scientific Name Ancistrus heterorhynchus  (Regan, 1912)
Common Name
Type Locality Uruhuasi, Peru, elevation 4000 feet.
Synonym(s) Xenocara heterorhynchus
Pronunciation an SISS truss
Etymology The name Ancistrus is derived from the Greek word agkistron, meaning hook, in reference to the interopercular odontodes that are hooked. 
Down arrow Species Information
Size 63mm or 2.5" SL. Find near, nearer or same sized spp.
Identification Mature males and sometimes females have soft tentacles (bushy fleshy growths) on the snout - this is unique to the genus Ancistrus.
Sexing Males develop soft tentacles on the head and while sometimes females also do, it is never to the grand extent of those found on that of the conspecific male.
Down arrow Habitat Information
Distribution South America: Inambari River basin in Madre de Dios River drainage.
Amazon, Middle Amazon (Solimoes), Madeira, Madre de Dios, Inambari (click on these areas to find other species found there)

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IUCN Red List Category Data Deficient, range map and more is available on the IUCN species page. Last assessed 2014.
Down arrow Husbandry Information
Feeding Ancistrus should be fed mainly on vegetarian foods. Prepared foods include algae wafers and spirulina based sinking food. Vegetables such as courgette/zucchini, and (English) cucumber are an excellent addition to the diet, along with the odd, small amount of more meaty foods.
Compatibility A good complement to most aquariums, they are not aggressive to other species. Males may fight over territory if kept in too small a tank.
Suggested Tankmates Appropriate with most community fish that aren't overly big or aggressive.
Breeding Unreported.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference 668, Pl. 76 (fig. 2), Proceedings of the General Meetings for Scientific Business of the Zoological Society of London 1912 (pt 3)
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Last Update 2008 Jun 04 07:24 (species record created: 2008 May 31 04:23)