Too Much of a Good Thing... Calcium Edition

[Dogs Cows Chicken]

They also might be wasting some of it. I was going through a lot of oyster shell and grit before I improved my system. Now I go through it at a more reasonable rate

Care to share your system?

 

[FrostRanger]

Care to share your system?

Just 2 mini Halloween pumpkin pails attached to a post. The top rim curves inwards so it's harder for them to waste any