A soil to filter! Water clearly in transparence!
It is a soil with an adsorption effect.
I only set it to a water tank and make it easy to maintain translucent breeding water as it is.
I am particularly superior in ability to adsorb a dirt of the water including the lye of the driftwood, and to bleach.
In the case of a set, the washing in water is unnecessary.
This product cannot be shipped to United States from the store.
Please contact the store for further information.