Bio-Ag Perma-Guard Diatomaceous Earth (DE) 22.7kg Plant You can fill them with

You can fill them with Hydroton clay pellets or the small rockwool cubes

Starts to work instantly

Compresses with ease

steady growth

Bio-Ag Perma-Guard Diatomaceous Earth (DE) 22.7kg Plant You can fill them withDiatomaceous Earth packaged under our FOSSIL SHELL FLOUR label comes from an extremely pure fresh water deposit of the diatom Aulacoseira from a deposit created in the Miocene epoch. Why is this diatom so special? Its shell is made of amorphous silica. Its shape and hardness are important to how it works. Its hardness keeps it from dissolving in liquid. The holes along the diatom's wall allow it to absorb moisture, hence its use as an anti caking