Sorry im late to the party. It is a L-265, hopefully you either don't have any more plecos or you have a large tank with lots of caves. I had one for awhile and it was territorial beyond belief. At 4" it was beating up my 6" adonis, my 6" L-200, and both my L-191's to the point I just took him back to the lfs. And this was in a designed pleco tank with LOTS of caves, driftwood, and space. Anyone else owned one of these guys? Maybe I had the 1 in 1,000,000.