I am purchasing my first breeding pair and seller emailed me to let me know they have been showing signs of their tail leaning in the last couple days. It has never been off until now and they are about 3 months old. Could this be a vitamin deficiency or is it def. wry tail? The seller says its a Vit Def and she sees it happen in seramas often. And that adding vitamins to their diet will correct it. So I am wondering if this is true or if I should be passing on this pair? She also this batch of chicks hatched are from 5 different hens so she couldnt imagine it being a genetic issue. Hope you can help!