((((((Bryanfykes)))))) What a man!! I hope your wife knows what she's got.
I have had to euthanise two guppies, on different ocassions, that I tried my hardest to keep healthy and keep alive. They both came from the same lfs, months apart, and they both had developed some cyst-like nodule on one of the dorsal fin rays.
No one knew what it was, but evidently it was a sign of some kind of disease or abnormality because both guppies progressed to dropsy.Once dropsy set in I used the clove oil method* which is truly a blessing to know about. I cried as I held the beautiful little fish in my hand, I had tried so hard to save them both.
I rescued a dying betta from my lfs. It was in a tank by itself and I could see he had an advanced case of dropsy, long stringy white poo, trying to stay upright. I asked "Edna" if I could take him home to euthanise him. She said, "Sure, if you want to."
She gave me a plastic bag and I gently scooped him into the bag. I took him home and without taking him out of the bag was able to gently put him to sleep. I didn't cry for him but felt very sad for him and others like him that live their short little lives in a cup in a pet store, and die there before someone takes them home.
After I had ended his miserey I felt very happy that I went in the lfs store that day and was able to help this little fish... happy is not really the right word... but I guess maybe I should say I felt very good about what I had done for him.
He was so beautiful and I felt sorry that he had never had a nice home, but he was not suffering anymore.
I have a brigs snail that I have fussed over and worried about and cooked jello for and written msjinkzd, frantically, because my snail wouldn't eat, and she's still going strong, though her shell looks pretty bad. I love that snail. I can't explain it but I will be devastated if she dies. I know I will sob.
* The clove oil method of euthansia is such a gentle, painless method everyone should know about it and keep a supply of clove oil. This truly can be the ultimate act of kindness and love for a fish that is suffering and going to die in a way that is slow and needlessly painful. Here is the link, I urge all to copy and paste it for future reference.
http://www.aquariacentral.com/forums/showthread.php?p=1370852#post1370852