Pseudacanthicus sp. L025

Photo: Ole Paulsen


Perhaps the most desired and sought-after Pseudacanthicus species (next to P.sp.“Typhoon”) globally, L25 is among the most eye-catching Plecos there is. It’s collected under challenging circumstances in the fast flowing depths of Rio Xingu and Rio Iriri, Brazil. It’s allowed for export, but the demanding market keeps the prices very high. As with all Cactus Plecos, once settled it’s an easy to care for fish when basic demands are fulfilled.


Name: Pseudacanthicus sp. “L25”

Trade names: L25, Redfin Cactus Pleco, Scarlet Pleco

Origin: Rio Xingu, Rio Iriri, Brazil.

Maximum TL: 40 cm / 16”

Cactus Plecos are among the most impressive of all Loricariidae. They grow into large, territorial feeding machines that will bring lots of joy and wonder to those who can house them. A diet consisting of meat-based foods is required, so mussels and shrimps are always desired. Additional dry foods with a good vitamin rich content should be added. The water quality must be prime, so a good filtration system, lots of oxygen and regular water changes is necessary for Cactus Plecos to thrive. Elder males become territorial and aggressive towards each other, and even to other Plecos. This means that suitable caves and territorial boundaries should be present, and tank size should not be too small. When all of the above is present, even Pseudacanthicus species can be lured to breed. Males have broader heads and slightly more prominent pectoral fin rays. Females of course show a fatter belly. Up to about 200 eggs are laid in a cave, so the process happens in typical Pleco manner with the male guarding the brood.

L25 can also be confused with L24 from Rio Tocantins, but L24 has paler markings and colours. L25 can also vary somewhat in colours/intensity, depending on where in the Xingu delta they have been collected.

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