At some point, I would like to purchase a 50% SD retic. But, I'm worried about nose rubbing, as well as the vet bills that would follow - so I'm aiming for a female since males (apparently) are more likely to do it, especially during breeding season. I believe the behaviour comes down to an active species being kept in too small commercially available enclosures, though I could be wrong. Still, I'm stressing about it, as the last thing I want is to buy a vivarium, only to have the animal in question nose rubbing because it's not large or stimulating enough. Any advice? Is there a particular enclosure size that is optimum? Or do you just have to take the plunge and hope the snake won't rub?