hey gabloo i just got two turtles 2 days ago too! =D have you figured out how to tell if they are F or M? i looked up online and was able to figure it out, i apparently have 2 females.
so what i did was look at its bottom shell and if its flat its female if its concave like curved then its male, also males have longer nails and tails are diff. its pretty easy to find out but i also read that when they are babies its harder to tell. mine are about 6-7 inches i think?
i named a big one Leela cuz shes feisty like Leela from Futurama, and the other one is Turbo my boyfriend named it

are your turtles babies? do you have any names in mind?