The newest caught snake died.. No outward signs of injury. I had previously put a little turtle in there with them for just about 15 minutes until I set up its cage, was this what killed her? I also put a new fern plant in there with them with limestone, but I cooked the rocks and the dirt I used so there wouldn't be any parasites. I've been feeding them salmon steaks, but neither have been eating well for some reason. I thought it was because they were uncomfortable without their previous fern, but although I put in a lot of small chunks neither ate. They were eating this before. What has changed? How do I keep the other one alive?