Unfortunately, you had good intentions, but you cannot release those turtles back into the wild. Once an animal is taken out of the wild, and kept in captivity, they can pick up other viruses,diseases and pathogens that re not usually found in their natural habitat. If you release these 2, they will almost surely die, and could possibly have a huge effect on the native animals where you release them. Basically, they're in captivity for life now if you want them to live..

Matt