New chicken mom here so please forgive any stupid questions. I have five week old chicks and I didn’t use newspaper in the brooder when they were little because they could slip on it so I used pine shavings....as they got older they kept getting so much pine shavings in their water that it was hard for them to drink. But now that they are five weeks old can I stop using the Rubbermaid product that I put on top of the newspaper, that I change out every day, now that they are older. Is it OK to use just the newspaper to make the cleanup each day a little easier. They’ve grown into a duplex, and I’ve added a picture with just the newspaper and then with the Rubbermaid shelf liner and newspaper. thank you very much for all your help.