Home from the Vet. Arnold had a ginormous tumor on his kidney. Dr Bruce suggested a bunch of things that could cause it. I asked about testing for Marek's and he did not think it was necessary and isn/'t rushing over to put down my whole flock. (He does do that sometimes). He had also lost a lot of weight which I didn't notice until yesterday.So sorry about your rooster!
He suggested that I get future stock from a different breeder preferably one that vaccinates. Arnold was vaccinated for Marek's. And keep doing what I am doing. I just checked the rest of the gang and their weight seems healthy.
I feel a little better knowing that he was probably predisposed and it wasn't bad food or water or something stuck in his crop.
Thanks for all your support. I had a good cry this morning and feel a little better.