For ages I wanted to get some
acanthurus but just before I got them I realized it was probably unwise to jump from Crested geckos to varanus so I'm currently concentrating on
Thamnophis instead.After reading through this thread I really have the urge for some varanus again

. have some questions.
What ratio of sand and dirt works best?
Do you have to treat the dirt to make it safer?
What do you guys do for night time heat?
Could a pair or trio of
acanthurus be housed in a 120X60X60cm vivarium?