We have a 20 x 20 x 20 stainless steel sink with 2 - 1500 watt electric heating elements. Depending on the outside temperature, we sometimes put a lid over it to contain the heat and keep it at the correct temperature. I like the control of the electric better.
I give mine all they want of 18-20% grower starter crumbles for the first 3 weeks. After that I continue with the high protein crumbles, but only give them as much as they can eat in 15 minutes twice a day. They also are in chicken tractors that are moved to fresh bugs and grass every day. They...