hi...
i have a serious tank problem. i have 2 goldfish about 3 1/2 years old. they have been sick for months. one has been corner hiding for 2 months without any visible signs of sickness. the other had what i believed to be chilodonella. i have treated them with every medication possible and kept a log of what i did. the one who corner hides lost part of his tail yesterday and i believe that he may be beyond help. he still eats and can swim although he isn't, only to eat. i am treating the tank for fin and tail rot again. should i humanly destroy him? i don't know what to do. i feel terrible. i have tried to keep them healthy and they have been except for the last few months. i don't know if fish feel pain but he lost about a half inch section of his 4 inch tail from a little over an inch from the base. iit looks like he may lose a section from the other side as well. can anyone please advise. i love my goldfish.
thanks......