I recently wormed my hens as you all described in the blog on worming. I used Safeguard in the water. Finishing up on second round and waiting 2 weeks. The question is do I need to do anything about the soil?? The vet I took my hen to for diagnosis mainly or possibly only saw exotic birds. But she said 3 feet of soil in pen needed to be removed and replaced with top soil? I'm not sure that is even possible here, would be costly and areas around pens are clustered together. I till the pens 2 or more times a year and apply lime to soil off and on. I've never seen any posts about soil. What do you all say?