Introducing FloraFlex? Quickfill an all-in-one coco system featuring the consistency of Char Coir. The Char Coir is washed 3 times with an EC = 0.06 and completely biodegradable. Take the guesswork out of feeding with this premium product. These come as a compressed and the bricks expands to become a grow bag. These bags are perfectly sized to allow for the FloraFlex? Caps to fit inside the top.