I'd leave it to settle a bit longer, if you bought this from a breeder it was most likely kept in a shoe box sized tub for the past 6 months, a 3ft viv is a whole lot of space if your not used to it. try adding another hide or 2 in the middle and plenty of fake plants & branches.
also when you say a tank do you mean like a glass fish tank ? do you have it covered on 3 sides ?
i wouldn't worry too much it'll just take it a while to get used to it's new home and feel safe.