Advertisement Anyone have any tips on doing a intensive care unit for true spiders? I have a phoneutria fera sling not eating and it's getting thin don't see how it could be dehydrated but it's possible since it's not eating. It's in a vial with moist substrate but not sure why it stopped eating it's to thin to be in premolt. I realize there is a good chance it wont make it but figured maybe there is one more thing I could try. I put it in a real small vial with a prefilled cricket mashed it up a little to see if it would try to feed that way.