Hi there, what amazing responses, thankyou!
I had decided to up the lighting hours, re treat for red mite,& leave them alone as they were not ill.
We now have 2 layers our of the new 12 girls.the shed was treated well before they moved in, there have been 1 or 2 mites seen so treated PROPERLY every week for 3 Weeks & so now I presume I'm on top of the problem (not that it was very big to be honest).
The girls have been wormed, have regular acv, add lib layers pellets & just a handful of scratch corn between them all.the ground is not open any where, they are on a wooden / slabbed area with a plenty large enough sand box for scratching.this is cleaned & sand replaced every 4 Weeks,& was clean when they moved into it.
They are not integrated with any other flock, so no pecking order problems as these are all from the same hatch. In the words of Yoda....." stumped am I"!!!
They are moulting, but it seems a bit of a half hearted one, they look good enough so aren't losing feathers in quantity.
I have another worry now.please, if you have the patience, see my new post!