I have a 72 gallon aquarium, 4 feet long by 1.5 feet deep by 1.5 feet high.

Would this be suitable for a trio of ackies? A pair? A lone animal?

How many inches of burrow-able substrate would you put if you had 18 inches to work with?

Thanks,

Joel
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3.6.3 Leopard Geckos (1.4.3 Albino)
~~25 Leo eggs cookin'~~
1.1 Ball Pythons
1.0 African Fat Tail Gecko
0.1 Okeetee Corn Snake
1.0 Blair's Phase Gray Banded Kingsnake