These Woodlice have been produced from my own cultures and are the same as I use in many of my Bioactive Builds.
 
They breed fast in the right environment and act as a brilliant Clean Up Crew in your Bioactive envrioment.
Keep these along side Springtails, this will help your Clean Up Crew be complete.
They grow to around 5mm in size, and have a distict grey colour.
 
They should kept in a damp environment, also adding a bit of heat will help them breed faster, 
 
Live arrival guaranteed