You can blend all the food into a semi-liquid, but then the jaw never gets any workout, and they can have lip issues. So sometimes I have a runny, goopy, messy meal they just lick up, and other times I make sure to give them food with some crunch. If I'm feeling really nice I'll even give them little piles of food separately and let them pick what they want to eat (usually everything, they're pigs). And don't forget, the runnier the food the more likely it gets smeared on everything -.-' Oh how they love making messes.
BTS are very hard to sex, so most dedicated breeders get a group of unrelated babies (say 5), grow them into adults, and then use test introductions to hopefully get a pair or two. Extras of either gender are great - if you have a female in the mood you'll hopefully be able to have at least one male who's also in the mood, or vice versa.
Introductions work best during breeding season after brumation - that's when you get the most reliable behaviours. Sometimes they fight, sometimes they ignore each other, and hopefully sometimes they try breeding. And while it's true that males are more likely to fight, females to ignore each other, and pairs to breed - there are always exceptions. I have males who are terrified of girls, girls who love chasing and attacking boys, and sometimes boys even think other boys look real purdy
Putting the skinks where they can see each other but not touch can give you an idea of gender - I thought Wasp was a girl, till he saw Fluke through the glass and tried to get at her - they bred and made babies that year
In regards to age, you shouldn't be even pairing skinks until they're at least 2, and it could take until they're 3 to 5 before they really figure out breeding. It would be bad to put a tiny skink near a big skink - the little one could easily be killed. But you can easily breed a 5y/o male and a 15y/o female, they don't care too much about age once they're adults. Also note they shouldn't be constantly bred year after year - give them years off to recover, making babies is very hard on the body. Thankfully they can breed even into their 20 without problem, as long as they're getting top-notch care.


