^^^ Ya'll can be so bad sometimes. It's all this encouragement to fill empty tanks that perpetuates empty tank syndrome and RAS (Reptile Acquisition Syndrome). lol. But filling it is always an option...just saying.![]()
On the other hand, if she is already five feet long, an 8x3 enclosure probably wouldn't be too large. Just add a little extra foliage and stuff to make it feel tighter if you're worried about her being stressed.
But if you're looking for something a bit smaller...go with a 6x2 intermediate.