my pleco is basically acting dead all of a sudden, hes a common about 13". Stopped moving I try to pick it up... and it is still barely moving, looks like its gills are barely going... and all of a sudden outta nowhere one of his eyes is no longer there!?! just a hole where the socket is... I feel bad for him/her... what should i do guys, let nature take its course and see if it somehow makes it? or what?!