San Francisco Garters in Europe - family tree?

[adamanteus]

I think part of the problem is the surfeit of males......

Which makes me think....... Many of you may already be aware of 'temperature dependant sex determination' in the incubation of reptile eggs (keep them warmer = more males, keep them cooler = more females), this works for live bearing snakes too. I needed more radix females so I kept my gravid female cooler than I might have otherwise..... out of 18 young she had 17 females.
I wonder if breeders have tried this with tetrataenia... I know I will next year.

[infernalis]

Which makes me think....... Many of you may already be aware of 'temperature dependent sex determination' in the incubation of reptile eggs (keep them warmer = more males, keep them cooler = more females), this works for live bearing snakes too. I needed more radix females so I kept my gravid female cooler than I might have otherwise..... out of 18 young she had 17 females.
I wonder if breeders have tried this with tetrataenia... I know I will next year.

Thank you, Cheers, Salutations

James that little tidbit of info just made my whole day.

It also explains something, while my gravid eastern was gestating, I provided her with a hot rock (set on low) that she chose to sit on nearly all the time, I wound up with a litter of nearly all males.