This is what I put the oyster shell in.
I bought it a long time ago to put minerals in for the horses. I never liked it for that so I pulled it down and put it in the coop. I also moved the grit to this since it has 2 sides and the old grit container was in the way.
If this works out with my...
Interesting that I stumbled across this. I just decided to switch to flock raiser since I have young birds in the flock right now. I'm on my way out now to hang a new container for calcium. I've never fed calcium separate so we'll see how it goes.