|Cat-eLog Data Sheet|
|Scientific Name||Pseudacanthicus cf. spinosus|
|Common Names||L375, Longspined Cactus Pleco
Langpigget Kaktussugemalle (Denmark)
|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.|
|Size||400mm or 15.7" 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).|
|Sexing||Mature males have considerably more odontodal growth on most fins rays but the pectorals are most adorned. Females fill out quite considerably in relation to the slender males.|
|Distribution||Upper Rio Anapu
Amazon, Lower Amazon, Tocantins, Lower Tocantins, Pará, Anapu, Upper Anapu (click on these areas to find other species found there)
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|Feeding||Carnivore although not a predator, prawns and chopped mussel appear favourites and promote favourable growth. Some vegetable should also be provided and thus balances diet.|
|Furniture||Proportionally sized pieces of bogwood (the fish does not appear to particularly like rock work) are a good idea as are equally dimensioned pipes. Plants are just a nuisance to this fish and while not orally molested, they tend to be battered by the fishes movement.|
|Compatibility||Generally peaceful but territorial from a young age. Some large specimens are aggressively territorial and may cause problems if housed with other large nocturnal fish.|
|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||Unknown although almost certainly a cave / pipe spawner.|
|Breeding Reports||There is no breeding report.|
|Registered Keepers||Keeping this species? Why not .
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 no wish to keep this species.
|Spotters||Spotted this species somewhere? Click the binoculars!
There are 2 records of this fish being seen, view them all.
|More on Pseudacanthicus cf. spinosus|
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|Last Update||2022 Jan 21 13:34 (species record created: 2006 Jul 31 00:00)|