It’s not a Clown. That I know for certain. Based on the head, it looks carnivorous, and thus, a species belonging in the genus Hypancistrus. Maybe it’s a Chocolate Zebra Pleco, but I’m not really sure, and I’m not very good with L-numbers. I wouldn’t be surprised if the common name covers several different types. Can you get a better pic?
Something wrong with calling it a Gold Spotted fish - it's not spotted. I've had 2 inch joselimaianus, and they were clearly spotted. That fish looks to have a more vermiculated pattern. And the pattern in the pectorals isn't right, either; it's too jumbled, the Gold spot has very even rows of markings on those fins. Plus the shape of the pectorals is different, OP's fish is curved along the back edge, while Gold Spotted Sailfins have a straight edge, making the fin look more pointed.
I know that there is some variability in the species, but I've never seen that much difference. This was my fish at about 5 inches, seven months after I got him. Pattern was changed very little from the young fish.
I would like to see a better side shot of the OP's fish. I just don't see it as being Pterygoplichthys joselimaianus.