I use aquarium marbles in the waterer

[RIVERA69R]

About how long do you need to keep the marbles or rocks in the waterers?

 

[Poulets De Cajun]

Until they are a few weeks old.

 

[Poison Ivy]

I don't use them in my chick's water but I keep them in the quail water because they can drown in it. I keep them in till they are a couple weeks old if that helps answer your question.