I was going to put my male spider to one of my big female normals. Both have been to the vet and checked out with clean bills of health, but I'm thinking my female may need to go back to the vet. I put him in her tank and she immediately started making a urate trail, but there was a little bit of blood. I got scared and pulled my male out immediately, to get online and see if this is normal or not. After a while using google and searching this forum, I am stumped! I'll be calling the vet to make her another appointment for the next opening.