please help I have read old post and Still the question remains a brooder size for about 20 ish chicks??55 gal tub just doesnt seem big enough?? for the 6-8 weeks and so and so on. what is the best way start small and work up?? also I am going to have the chicks in the house we dont have a heated garage and it is still 35 or lower at night..how high does it need to be when do they start hopping out or flying out...Thanks in advance never been the mama hen before? always had the pros do this part..