Well lets see.....I had my female blizzard out a while back and she's a bit of a cranky brat.....she bit me and my reaction sent her flying across her tank...but she's fine thankfully. What i've seen done and will be doing myself next i attempt to see if for sure she's a SHE, is put her in a container with a see through bottom, then hold the container up so you can see the underside.
As for feeding, i've observed that in my 7 geckos their eating habits vary. Two of them i can't satisfy even feeding 15-20 or more mealworms per day, while a few eat 5-10/day and others eat only every other day. Six of them are all around the same size and age (at least i think so) while the 7th is my adult male Boo. He'll eat every couple of days.
Theres many people on the forum who can tell you more about breeding than i as i haven't allowed my girls and boys to get together yet, but what i do know is that you need alot of room LOL.
Hope that helps 
Red
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Crested Gecko Zeek:1.0
LEOS: Boo: 1.0 normal , Bronx & Nala: 1.1 blizzard,
Lily: 0.1 patternless, Abby: 0.1 albino, Zoe: 0.1 reduced pattern, Dot: 0.1 hypo
Chip: 1.0 papillion (small dog)