Mr. Aqua’ s Water Plant Soil is composed using specific proprietary blends oforganic and inert ingredients providing all essential elements as well as astable and ideal rooting media. The soil will also provide bufferingcapacities for softening water as well as a buffering pH from 6.6 6.8depending on water parameters. The soil is a long lasting fertilized plantsubstrate lasting up to 12-18 months. It purifies water that is stained fromdriftwood. It prolongs water exchange periods up with its porous granularstructure that is easily penetrated by plant roots. One bag Coversapproximately 12′ x 6′ at 1′ deep or 6′ x 6′ at 2′ deep. Black in Color