I sold a puppy(need advice)

[MyBabyBoy]

What is the name of your state? FLORIDA

I purchased a puppy at 8 weeks old from a private breeder. I visited the breeder and the puppies/parents every weekend until the puppy was ready to be taken home at 8 weeks old. All puppies and parents were extremely well taken care of, not in cages and from what I saw...very healthy and bonded to their owners.
Well, unfortunately, we only had the puppy for 2 months because my son's allergies became to much to handle. I placed an ad on the a website looking or a home for the puppy. We sold the puppy(less than what was paid) and the puppy had all the required shots up to date, including his papers. There were absolutely no signs of health problems when they took in the puppy. There was no contract and no health guarantee as also with the breeder from where I got him from and with the new family.
His last vet visit, he was healthy with no signs of health problems, we even had him microchipped for the new family who purchased him.
They were happy with the puppy and I even received updated emails.
They purchased the puppy on June 24,2005 and took him to the vet on July 12th, 2005(injured leg)
Well, now the family has notified us that after that visit to the vet for that small leg injury, he was diagnosed with demodex mange(puppy mange). Not the contagious mange but curable with 9 weeks of dips and baths. Apparently the vet stated it is an inherited trait from the parents and thus recommended for him to be neutered and not bred, which is why the family is somewhat upset. In other words they are requesting the return of their money and that I should contact the breeder where I purchased him from.
The breeder where I first got him has had no problems with the other puppies but then again demodex mange, I believe can show up at anytime. The breeder has also been contact with the breeder whom she purchased the parents of the puppy and thus neither have had demodex mange on their dogs.
Can anyone advice on what I should do...Legally, do I have to return the money(morally my mother says i should) but then again I did not know of any health problems prior to selling the dog either....help fast!
This is the link to the Florida Statutes regarding the sale of animals but I am neither a pet dealer or a breeder, I just sold my pet.
[URL]http://www.leg.state.fl.us/statutes/index.cfm?App_mode=Display_Statute&Search_String=&URL=Ch0828/SEC29.HTM&Title=->2004->Ch0828->Section%2029#0828.29[/URL]

[djohnson]

I wouldn't give them their money back. It is up to them to check out before purchasing. They basically bought 'as-is', burden would be on them to prove you new, or previous owner/dealer knew and withheld the information. They got a deal, it had not been picked up on before, which you can show from where you had taken it to the vet. I would say sorry so sorry, but your loss to them.