Cat-eLog Right Arrow Loricariidae Right Arrow Hypostominae Right Arrow Pseudacanthicus

Jump to next section Cat-eLog Data Sheet
Scientific Name Pseudacanthicus serratus  (Valenciennes, 1840)
Common Name Mustang Cactus Pleco
Type Locality Region around Paramaribo, Suriname.
Synonym(s) Hypostomus serratus
Pronunciation SUE dah KAN thi cuss
Etymology Pseud- Greek: False, Acanthicus - Greek: Spiny, Thorny. Literally "False Acanthicus" referring to this genus being similar to, yet different from, Acanthicus
Jump to next section Species Information
Size 320mm or 12.6" SL. Find near, nearer or same sized spp.
Identification Pseudacanthicus is a member of the Acanthicus clade. Species of the Acanthicus clade are distinguished from other Loricariidae species by the presence of (1) longitudinal rows of keels (pointed odontodes) along the body sides; (2) eight or more dorsal-fin rays (vs. six or seven in most other loricariids except Pterygoplichthys, Chaetostoma, Pogonopoma and Pseudancistrus pectegenitor); (3) seven to eight infraorbitals (vs. usually five or six); (4) five anal-fin branched rays (vs. usually four); and (5) presence of hypertrophied odontodes along the snout margin (vs. hypertrophied odontodes absent in other loricariids except Isbrueckerichthys and Pareiorhaphis, in Neoplecostominae; Panaque and Pseudancistrus and Neblinichthys, in Ancistrini; and most dimorphic males of Loricariinae). Within the Acanthicus group, Pseudacanthicus is distinguished by the presence of two small plates in the posterior area of the compound pterotic (vs. one median plate or plate absent), and by the presence of narrow premaxillae with a small number of elongate and curved teeth (except from Leporacanthicus).
Jump to next section Habitat Information
Distribution Coastal drainages of French Guiana and Suriname.
Guyana Waters, Coastal Rivers of Guyanas (click on these areas to find other species found there)

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Other Parameters Lives in the deep and rocky zones of the main riverbed.
Jump to next section Husbandry Information
Feeding Carnivore although not a predator, prawns and chopped mussel appear favorites and promote favorable growth. High quality pellet foods are well received and greatly reduces the volume of waste produced. Some vegetable should also be provided and thus balances diet.
Furniture Adequate coverage for this Genus is required. Multiple structures consisting of wood, caves, and overhangs are ideal. High intensity lighting does not bother them and many species will 'sun themselves' on the top of the furnishings if they are comfortable with their environment. Long sight lines can promote aggression. Placing structure at different distances from the front glass is an effective solution.
Suggested Tankmates The temptation with large tough Loricariids is to keep them with other large tough fish such as Oscars or other brutish characters. This actually works quite well with most omnivorous or mainly vegetarian plecos. Pseudacanthicus despite their defensive protection can be bullied by faster moving fish of similar size. They are carnivores and only eat vegetables when their preferred food is unavailable. The amount of waste produced depends on their diet but is considerably less than a Panaque or Pterygoplichthys of similar size.
Breeding Unreported.
Breeding Reports There is no breeding report.
Jump to next section Further Information
Reference Histoire naturelle des poissons v. 15, pp 503.
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Last Update 2013 Jan 28 12:45 (species record created: 2010 Feb 14 13:31)