"what length and weight do male and female russians need to be to breed?"

ditto to brad and vic. here are a few numbers for comparison:

Female breeder weights(g): 1200, 1640, 1155, 1240

Females not yet bred:

890g ten years old (CB), males interested, no eggs yet
855g LTC no eggs
825g LTC no eggs, but is pseudocopulating

Proven male breeders: 630, 719, 880, 630

Male too young 325g 5 year old (CB) guessing 2-3 more years

hope this helps,

matt