From personally keeping crickets for a few years, I soon realized keeping crickets it's a chore. The smell, the chirping, ones that get out etc.. But I do know that keeping the egg carton is a must because they will all hide in the same general area and sit on top of one another which obviously kills a lot of them off. I heard the gel isn't very good for lizards either.. I'd love to back that theory up but I just heard it sticks to the crickets legs and gets ingested by the lizard..
For keeping large amounts, I had an extra aquarium and that worked great.
Cheers
PS: Females are the larger ones with the tails.
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