For females I recommend they should be at least 15 months old though 18 is best. No older than 6 years (though females can and do produce eggs after this...often fertility is greatly reduced by this time). Females should also be at least 350g...and receive a vet examination and have a fecal done before being bred (or brumated, if they are brumated first)

Males should be at least 12 months old and a good healthy weight for their size/age...300g plus is good weight to go by. They should also be a similar size to the female. It is also a good idea to have the male be inspected by a vet too to ensure complete health etc.

Younger males could be used though to me 12 months ensures full maturity. Males can be sexually mature as young as 6 months, but I don't see any reason to rush them into breeding...older females may be less inclined to let an inexperienced young male to breed with them.
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PHLdyPayne

Forum Princess