I haven't seen a Organic All-Flock feed. Just Starter, Grower, Starter-Grower and Layers feed in crumbles and pellets.
You can use a Organic Starter or Grower or Starter-Grower with Oyster Shells in a separate container.
I would use Starter or Starter-Grower because I like a feed with 18/20%...
If they seem healthy you should be fine.
Keep their brooder clean and dry.
How old are they? Do they have access to the outside?
Some people that don't use medicated feed scoop up some sod from their untreated lawn and place in their brooder.
I use medicated feed for chicks and have never...
I would feed the game bird finisher till the chicks pullets have started to lay, then switch to the layers feed, with Oyster Shells or crushed limestone separately. GC
I have read that medicated feed with Amprolium helps to prevent Coccidiosis up to 10 weeks.
Then switch to a Non-Medicated Starter Grower 18/20% Protein.
Temporarily feeding Adults feed with Amprolium if you have Chicks will not harm them and the Eggs are safe to eat. But I would Not feed all...