Not sure if anyone else has ever had this happen but our Green Wrasse seems to have gone blind. He is in a 65 gal tank with a few other fish and it has always been a friendly community. He was always a great eater and swimming throughout the tank and live rock. About 2 weeks ago he took to staying in one corner. He comes out at feeding time but only swims around mouthing. He used to be able to catch the smallest pieces of food and now it appears he can't see anything anymore. I have been putting a chunk of food in his corner for him while I feed the other fish. he senses that it's there and then when he finds it, he devours it. Has anyone ever had an active fish like this go blind before? Am I caring for him properly? Is there anything else that I can do? His eyes appear clear and the water is in great condition.