Very good, but a few things:
1) Just cuz you're putting sand where you think they don't eat it, doesn't mean they won't eat it where it is. They ingest substrate when they hunt, but they will also lick it up as a source of calcium. You should already have a bowl of calcium powder in there, but l'il leo doesn't know the diff between a calcium bowl and sand. If you have sand in there, anywhere, your leo will inevitably ingest some.
2) Leos poop in the same place every time. Once you figure out where your leo likes to go, tile or no tile, you're gonna wanna put down paper towel in that area. Throwing out papertowel every couple of days is less of a pain then cleaning the tile.
Have fun,
Joel
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2.5 Leopard Geckos
0.1 Ball Python
0.1 Okeetee Corn Snake
1.0 Blair's Phase Gray Banded Kingsnake
0.0.2 Crested Geckos
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