<a href=showthread.php?s=&postid=13846241#post13846241 target=_blank>Originally posted</a> by maxxII
If the fish is eating and getting stronger, even though its eyesite doesnt seem to have returned, you can keep it alive. it will however require effort on your part.
Start by putting food in the same place every day. The sooner the fish recognizes that food can always be found in the same location it will begin to go there.
If possible, slowly try to get the fish to eat from your hands. Its sense of smell may be intact. If it starts to react when you put food in the tank, then it can most likely smell. If it cannot see, then it probably wont be able to view your hand/finger as a threat.
My fish eat from my hands. The one that is most adept at it is my Indo Pacific Regal Angel, but it has taught the others to do the same.
I started by hitting the food timer switch on the Tunze's, which shuts the pumps off for 10 minutes. I then began feeding my fish out of a turkey baster, (rods food, mysis, mysids, etc). The fish then began to associate my presence and the pumps being switched off with getting fed. After awhile, I began taking small strips of fresh scallop or shrimp and pressing them against my index finger and holding it barely underwater. At first the fish were scared and wouldnt come too close, but the scent of the food kept them curious. After awhile the food would fall off my finger tip and the fish closest to it got to eat. It wasnt long after that the Regal figured out that it actually pick the food off my finger tip. Thats how I feed her most often now. She's taught the other fish that they can do the same thing.
If you can get going with something like that on your tang, its definately got a fighting chance.
Nick