Make sure to mist your sow bugs daily 1-2 times as they need this to process foods and get rid of waste in their bodies. The sow bug is in the isopod family and you can tell if they need more water misting in the storage tank if they all start clumping up in the same area that has moisture.
These creatures prefer cool damp areas and love to eat many items such as cardboard, paper, and of course decomposing wood.
You can supplement with a little calcium on the wood to increase calcium uptake if using as a feeder, Sometimes also called the rolly poly or pocket pets.