>>what is a good cage size for a pair and a trio?
A single crested needs at least 20 gallons, so I'd think 30 at least for a pair and 40 for a trio would be good minimum sizes; larger is never bad, and remember that they need vertical space more than horizontal space.
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0.1 Albino Leopard Gecko - Tigger
0.1 Crested Gecko - Pooh-Bear


