Males, over 600grams (500 if they're producing "plugs")
Females, over 1500grams, they've been bred at smaller weights but you'll get smaller clutchs, even infertile/slug clutches are higher of a risk...
I've seen/herd of good healthy clutches from 1200 gram females....It's more of preferance if you can wait 1 more season..lol...I have 3 females I'm gonna be breeding 1 is 2500grams, 1 is 1600grams and the last one is a little over 1200grams....