Cat-eLog Right Loricariidae Right Hypostominae Right Ancistrus  |  | 

Down Cat-eLog Data Sheet
Scientific Name Ancistrus megacanthus  Widholzer, Borsoi, Reis & Lehmann A., 2024
Common Name
Type Locality Rio Vacacaí on road RS-630, tributary to rio Jacuí, laguna dos Patos system, São Gabriel, Rio Grande do Sul, Brazil, 30°27'18"S, 54°22'26"W.
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 Species Information
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 Habitat Information
Rio Grande Do Sul State Waters, Laguna dos Patos, Guaíba, Jacuí, Vacacaí (click on these areas to find other species found there)

Log in to view data on a map.
IUCN Red List Category Not Evaluated
Down 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. User data.
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 All Ancistrus species are cave-breeders, where the male looks after the eggs and young fry.
Breeding Reports There is no breeding report.
Down Further Information
Reference Neotropical Ichthyology v. 22 (no. 1): e230078, pp 4, Figs. 1-2.
Registered Keepers There is but a single registered keeper, view all "my cats" data.
Wishlists Love this species? Click the heart to add it to your wish list.
There is but a single wish to keep this species, see who wants what.
Spotters Spotted this species somewhere? Click the binoculars!
There are 2 records of this fish being seen, view them all.
Forum BBCode
Search for A. megacanthus
Look up Look up A. megacanthus on
Look up on Fishbase Look up A. megacanthus on Fishbase
Look up on Encyclopedia of Life Look up A. megacanthus on Encyclopedia of Life
Look up on Global Biodiversity Information Facility Look up A. megacanthus on Global Biodiversity Information Facility
Ancistrus megacanthus QR code LFS label creator
ARN ref:
Last Update 2024 May 22 12:34 (species record created: 2024 Feb 12 18:14)