Update:
I just wanted to say the chickens are looking better after the valbazen a few days ago. They are on their 7 day course of antibiotics. They are having a large pumpkin tossed into their pen daily as a treat along with the usual BOSS and other goodies. They go crazy for the pumpkins. I am glad that my DH planted so many this year.
Their poo is getting to be more normal consistency too and I don't detect a funk like I did before. I have not seen the tiny worms in there like I did a few weeks ago (clear green poo with thread like worms, flecked with blood).
My dtr has access to raw milk from a lady down the road that has her own dairy cows and is going to bring me curdled milk and buttermilk, and has so many probiotics in it. When the antibiotics are completed, I will start the vitamin and minerals supplement.
My son in law brought me a big scoop of sand and dumped it into the run. We spent a little more money and had gutters placed so water doesn't drip off the roof into the run.
I think they are on the upswing. The just look like they are healthier. Thanks to everyone for their comments and suggestions. This is a big learning curve for me. I read alot and hopefully retain something now and then. I don't want my chickens to suffer due to my knowledge deficit. I never had chickens that actually stayed alive more than a year or two due to predator issues with our old henhouse. Since we built the new one a couple of years ago, I have not lost one to predation, just don't want to lose any to my lack of animal husbandry skills.