Over the past three days I’ve have witnessed my plecos losing parts of its fins. Last night I stayed up watching the tank when I noticed my 3inch kuhlI loach ripping the fins off my plecos. I separated the plecos from the other fish and noticed extreme lack of movement. This is the third time one of my expensive plecos were mortally wounded and died with similar injuries. The kuhlI loaches are now separated from my community tank. Has anyone else experienced the brutality of the kuhlI loach?