Dragon Chinese Shop

Chinese Water Dragon advise required?
I have seen 2 dragons for sale, 1 female, 1 male, presumably brother and sister. Does anyone know how long they could be kept together for and if they would ever start to breed? They are already in the same cage at the pet shop. Any advise will be appreciated.
I wouldn’t keep related animals together of any species, in-breeding has potentially horrendous results plus as previously mentioned you’re going to need an enormous enclosure even for one. I’ve given a couple of links one to a care sheet the other a website just about water dragons, they should give you all the information you might need plus keep you occupied for hours.
http://www.anapsid.org/waterdragons.html
http://www.triciaswaterdragon.com/
Can’t think of anything that won’t have been covered in the links I’ve given
How to Draw or How to Paint Dragon in Chinese Painting
