I think 1200 is the MINIMUM, but I'm more towards 1400+, I currently have 2 pairs going, one of which have already locked up. The female is over 1600 grams, she is Proven and laid I believe 6 eggs last season. I'm only expecting 6-8, maybe less. I have one female Over 2400grams, thats a VIRGIN!!!...I'm hoping to get a Nice big pile of Pearly Whites from her. My other females are right around or the 1500 gram mark...Like most have said here, the bigger the female, the greater the amount of eggs can be produced.
So, yeah..Right now all of my females are over the 1500g mark...I rather have a bigger clutch, keep the mother Healthy, and not risk anything bad to happen to her or the clutch...
Good Luck with what ever you do. And, Good Luck this season!!!!