Breeding occurs in the wild at around four years of age but age five would be a better size, the females weight will be at it's least in winter but after it warms up they eat everything in sight that will fit in their jaws, Males hardly eat a single meal till thier done chasing the females, but the females weight is only a matter of clutch size and is not required before breeding, in other words: adult females will breed at a certain age regardless of their weight, their weight is put on afterwords. The eggs will absorb most of the mass she aquired but then after the drop date and a brief rest period she will again eat like mad, in my opinion weight has lots to do with clutch size and egg girth but little to do with breeding, males literally rape females, breed weather the females like it or not...JB