My lion that I got from my lf had just come from this guys tank and it was thin The lf store gave me it to try to get it to eat but so far ... no luck i have tried feeders shrimp and silversides but still no luck it is about 8in. and i think it is blind because the shrimp crawl on him and he does not even notice and does not go after them any advice? I think that is why the guy brought him in. Help!