I use kiddie pools with cardboard taped around the sides & netting over the top.[COLOR=0000CD]The above is a 110 gallon stock tank from TSC. It's a tuff stuff brand and we have about a dozen of the 40 gallon size around the place and use them for all kinds of things including brooders for up to 10-12 chicks. You can wash them with bleach and soapy water to clean and sterilize. They are thick and black and hold the heat from the heat lamp and work very well as a brooder. I have 25 ISA brown pullets coming in a few weeks and looking at this 110 gallon size but hate to pay the price of $65. What do you use as a brooder that is cheap and can be sterilized...?[/COLOR]