My little turtles also came from china town ncy, and i also was unaware of the legal situation until i had them home and was looking on the internet. I reported the issue to the ASPCA, how said its not their department...
If you can afford to keep them they will bring you much joy, but what ever the people that you bought them from told you is most likely B.S.
They need alot of swimming room, proper basking area, lights, proper diet (not the pellets they gave you in china town), and clean water. If cared for properly they live a very long time (longer than you or me) and can get to be the size of a dinner plate.
This site is great for getting all your info. Its helped me alot.
First off, you will need a bigger container to keep them in then what they gave you in china town. even if its a bucket or rubber maid container. And they must have a place where they can get dry too.
Next, do the look and act healthy? look at some pictures of other healthy RES and some of sick ones. One of mine had the beginning stages of blood poisoning and had to be kept separate while i treated him with antibiotics.
Taking them to a herp vet to check them out is always recommended.
If they look healthy (no spots on shell, no pink color on skin or under shell, nice orange/red ears) and are responsive when held (sucks into shell or trys to get away) then I say start caring for them the best you can and just keep an eye on them for any signs of sickness.
About semolina, as with all reptiles, wash your hand well with soap and water after contact with them. Keep them and yourself in good hygiene.
I hope you keep them. I never knew how awesome and sweet turtles could be until that day in china town.
