They are both female. They were housed together in a large tank with many other geckos and were both temp sexed, and the larger is confirmed female. I work at a pet store and am pet care specialist in reptiles and avians and know the basics. We always house our leopard geckos on sand. I am very aware of ingestion problems and watch carefully for symptoms. Leopard geckos come from Pakistan and are desert reptiles, which I am quite sure you know, so it is actually quite natural for them. However I am quite aware of problems with hachlings under 5" ingesting the sand. This is actually thicker grained playground type sand and not the ingestable kind. The fine calci-sand always caused problems at our store before switching. We have not had a compaction case for over 2 years on it. Besides the meal worms, I also always feed crickets and waxworms in a separate tank. Thank you for your suggestions and concerns though I was planning on moving the younger girl as soon as I set up a new tank.

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