So I wanna get a Exo Terra terrarium for a Kenyan Sand boa, and everything I've researched says a ten gallon aquarium will be good for an adult male. What I'm wondering is since a 10 gallon is 20inx12in12in and the Exo Terra is 18inx18inx12in would that be good since I'm losing 2in in length but gaining 6in in depth? Thanks for any help!