I use the big plastic storage tubs for indoor brooders with chicken wire for a top; then the lamp sits ontop of the wire.(we have cats) Buying different size bulbs is the way to go usually 100-150 watts. If you use a grow light they will grow faster but it will give them a sunburn if left on all the time. I recommend giving them a grow light for 4 or 5 hours a day and then switching to a regular bulb or heat bulb.