How have they made it for the previous 100+ years? 🤷🏻♂️ It’s NATURAL for them to be raised by their mother hen within their flock. She will protect them as best she can. Yes, there will be altercations but they will learn. They will establish a “pecking order”.
All the talk against running a garden hose down a fenceline and attaching to a float system in the coop befuddles me. You're not filling individual drink glasses with water directly from the hose, so the water being hot is irrelevant. If the float is positioned in a small vessel like a 5 gal...
Try using wire fencing with holes large enough chicks can get thru but grown birds cannot. I've used scraps of concrete reinforcing wire, like people use for tomato cages, and built a small temporary pen I side the larger yard. Put the chick feed and water in the small "chick refuge" and then...