I have bred mine in Sterilite containers for about a year now. I don't remember the quart size, 48 I think, the tall clear ones anyway. I put one pair per container.

I like to keep the hatchlings in smaller shoe box sized containers, usually two per container, graduating them up as they grow.

They are happy this way, healthy, and continue to breed. Just dont forget to put an egg laying container in with your breeding geckos.
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2.2.9 Crested Geckos
0.1 packman frog
1.1.1 Box Turtles
3 green and black auratus