scientifically formulated produced from natural volcanic ash-based soil, sintered with other minerals into a soft, porous, granular structure. It contains all of the nutrients required by plants for proper development, guaranteeing ideal (natural) conditions for lasting plant growth. Its soft, porous, granular structure is easily penetrated by growing roots, positively anchoring plants to the substrate while providing immediate access to all of the nutrients. The porous structure also allows plant nutrients to be released to the surrounding water so that no additional fertilizers need be added for at least 6 months. Flora Base is an excellent filter media when combined with an under-gravel filter.