This is a shot of an unknown plecostomus already sized 27 cm housed in a 300 liter tank along with 3 Astronotus ocellatus and one Geophagus steindachneri (partly visible in the top left corner of the lower photo). Any help to identify this fish will be appreciated.
It was initially thought that this fish is Glycopterichthys gibbiceps (L 083), however the pattern on the two fishes didn't seem the same although quite similar. Many thanks to Andreas Iliopoulos and George Sirpis for suggesting that this is most probably Glyptoperichthys joselimaianus ("white spot - Glycopterichthys"; L 001). It should be noted that L 022 (Glyptoperichthys joselimaianus; "Amazonas pleco) looks even closer to the fish in question. The fish is found in Brazil (Rio Tocantins) and will reach a final adult length of over 40 cm.
You can see more photos and information here :
Photos by Friedrich Hollander