I'm not really bothered what species he is i just think it's nice to know.Ianab;1191397; said:Probably a P. pardalis (A 'common').
http://www.planetcatfish.com/catelog/species.php?species_id=88
Check the dorsal fin, if it's got 12 rays it's a Pterygoplichthys species, if it's got 8 fins then it's probably a Hypostomus species.
http://www.planetcatfish.com/catelog/species.php?species_id=87
Doesn't really matter which one, care, feeding and behaviour is pretty much the same, and they all grow pretty big
Cheers
Ian