Probios powder and the generic form at TSC are good for probiotics. Plain Greek yogurt contains some, and there are other brands of the powder available. Most commercial chicken feeds have them nowadays, so check your brand. I prefer the open waterers when I don’t have baby chicks who could drown in them. I find it is a lot easier to dump a metal or black rubber bowl daily, scrub it out and refill to the top. Who is watching your chickens? Are they familiar with chickens? Flystrike can be a deadly problem with poopy butts and flies.
