My hatch is about halfway done. I built a big brooder with a separation screen. One third is for my two-weekers, the rest is for the day-olds. The newbies will be in a space that is 3 ft x 3.5 ft. Will this be too big or will they be OK? I have the food and water just on the outskirts of the heat. Will they get back to the heat OK when they wander away from it? Thanks in advance.