My tortoises are about 3 and I know that they have to be a certain age to breed ( 6-7 ) for it to be successfull, but I have them in an open 75 galllon tank with heat lights and everything great for them, but I don't think I have the room for them to grow. My female "sydney" is about 5" inch. And my male "taz" is about 4" inch. And they have been likke that since I got them (sydney about 2 years ago and taz in early january 2012) I've seen videos online of tortoises a little bigger with successfull eggs, but they said they needed a lot of attention. What should I do!?!?!?!?!?