i'm new at this...i have three 24 day old chicks and at night i have them in a plastic bin (file folder size wide and about 30 inches long) - is this too small?? they seem to be fine, but are getting so big, so fast! i also have a small water feeder and a bowl of food in there...newspaper on the bottom (for easy clean-up) and a bit of straw...am i supposed to have straw?? sorry if this question seems pedestrian, but i am learning so much from all of you!!!