If u don't heat the eggs, incubate, it will take 2 weeks to hatch. U can use about 2 males and 2 females to end up with over 100 crix. I use a to go container, like the kind from kfc, for them to lay eggs in, fill with dirt and keep moist, wait 10 days after crix sing. And then cover, put small holes so dirt doesn't mold, and they can hatch in 2 days if u put them on heating pad(human variety) on low. I have 4 containers, 1 fir large feeders and breeding , 1 hatching and pin heads, 3 week olds, and and 6 week olds. I got large storage food containers for the Lil ones, a big crix keeper for breeders, and a tub 7" high 24" long fir 5 week olds. Put large holes for ventalation, and go!!! Originally I used 10 of each sex, and have quite a swarm, at 3 weeks old I feed them to frogs by putting a baby food jar full of them in cage, they can't get out and ravage viv, and frogs can get them easy. Good luck, and too many is ok, with bowl feeding!