After discussing with several people, including those from some of the big aquariums and zoos about the pacu
that I had, all of them said that it would not be fair for the Pacu to remain in this tank and one pointed out that this Pacu has already had a longer life than most when you consider that out of the thousands of Pacu fry made in the amazon
, eaten by predators, and survived shipping or unknown factors. In the end, this Pacu was lucky that he was put into a better situation and his quality of life improved with the care that I gave him.
I was unable to find a tank of 800 gallons or more for him. All of the people who contacted me had 200 or 300 gallons but most had around 125 gallons. There was also a very high chance of this fish being stunted, and it probably was. I could not, in good conscience, allow this fish to go to a small tank, even if it was 300 gallons. I saw three Pacu at the fish store at my old town, Greensboro, but I was still not willing to give it to him and have it end up in another too-small tank.
In the end, I decided to take what I felt was the most humane solution: euthanasia. The Pacu is no more now. I found a nice spot in the backyard by a young tree and buried him so he could return to nature and become food for the tree.
In the future, I've decided that once I have bought my own place, I will set up an pond for rescue Pacus and other large fish after my eyes have been opened to the plight of these fish. Thank you for following me through this thread and giving me your input with everything.