Keeping your terrarium in optimal health is quite straightforward, particularly if you choose to add in activated charcoal. This rather unassuming substance is not like other charcoal that can be found in fireplaces, BBQ's or even on burnt food, and has excellent toxin-reducing qualities which will help keep your plants happy and healthy.  Where Does Activated Charcoal Come From? Activated charcoal (also know as activated carbon) is produced from heating wood, bamboo, coconut shells or sawdust to extremely high temperatures which produces a unique kind of charcoal. This process makes it much more porous than any other kind of charcoal and therefore it