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

Jump to next section Summary of Pseudacanthicus
Pronounced 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.
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).
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.
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.
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.
Size Smallest 180mm, largest 800mm, average 391mm, most commonly 400mm. All SL.
Species There are 33 "species" in the database
Keepers 29 species (87%) are being kept by registered keepers
New spp. / time
1750 1770 1790 1810 1830 1850 1870 1890 1910 1930 1950 1970 1990 2010 
Jump to next section Most Kept Species
1. Pseudacanthicus cf. leopardus (33.18%)
2. Pseudacanthicus pirarara (12.31%)
3. Pseudacanthicus pitanga (10.79%)
4. Pseudacanthicus leopardus (10.32%)
5. Pseudacanthicus sp. (L273) (9.5%)
6. Pseudacanthicus spinosus (6.21%)
7. Pseudacanthicus sp. (L097) (3.52%)
8. Pseudacanthicus sp. (LDA105) (3.17%)
9. Pseudacanthicus sp. (L065) (2.81%)
10. Pseudacanthicus sp. (L282) (1.64%)
11. Pseudacanthicus sp. (L427) (1.29%)

Jump to distribution.

Jump to next section Distribution of selected Pseudacanthicus species


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