L114 Scarlet Cactus Pleco
Pseudacanthicus cf. leopardus
Note: Due to variations within species, your item may not look identical to the image provided.
Distribution
Mostly collected in the Rio Negro basin, Amazonas state, Brazil, and in particular the Rio Demini, a northern tributary flowing into the central Negro in the municipality of Barcelos.
P. leopardus was described from the Rupununi River in Guyana and the identity of this fish thus remains unconfirmed.
Maximum Standard Length
200 – 250 mm
Aquarium Size
| Minimum Aquarium Size | 180 cm base dimensions |
|---|
FAQ
What is the scientific classification of this pleco?
The species is classified as Pseudacanthicus cf. leopardus, though the identity remains unconfirmed due to taxonomic uncertainty.
Where is this pleco naturally found?
It is primarily found in the Rio Negro basin, Amazonas state, Brazil, especially in the Rio Demini tributary. It has also been recorded in the Rupununi River in Guyana.
What is the typical size of this fish?
The maximum standard length ranges from 200 to 250 mm.

Alexandra Piper –
This pleco is active and interesting to watch. It adapted well to my 200-liter tank with soft water and low flow. The coloration is slightly different from the image, but still striking. Good for a beginner who wants a unique cichlid-like pleco.
Alexandra Vaughan –
It’s a bit shy at first but becomes more active over time. I noticed it prefers the back corners of the tank. Water parameters stayed stable with regular testing. Not the most colorful, but it’s a solid addition to a planted tank.
Michelle Rees –
Great for a community tank. It doesn’t eat much and doesn’t disturb other fish. The size is manageable in a medium tank. I appreciate the natural look and the subtle pattern on its body.