EcoBio-Block: Clean water by natural micro organisms as it is done in nature. EcoBio-Block was developed, incorporating cutting edge technology, with the natural ecological system of using microorganisms to improve water quality. EBB works without chemical means such as disinfection, sterilization and antibacterial action. EBB-Products are: EBB Ring, EBB OCT, EBB Wave, MFA, EBB Pebble L, EBB Ball S/M/L and Mizumonogatari. Microorganisms have been incorporated into porous stones made of pumice and concrete to purify water: The EcoBio-Block. The EBB microorganisms are aerobe microorganisms and require oxygen. They are viable in air and water. They degrade colon bacillius and putrefaction bacteria and cleanse their environment. EcoBio-Block emulates the natural purification mechanism of water that has been adversely affected by pollution over many years. EcoBio-block uses nature's natural purification process to renew and revitalize the environment. We have succeeded in incorporating the microorganism and its nutrients in a special porous stone made of pumice and concrete, the EcoBio-Block. The microorganisms can not survive in water; they are given an abode with their nutrients inside EcoBio-Block to ensure their effective survival. As the effective microorganisms come in contact with water, they begin to propagate in the porous stone made of pumice and concrete and disperse outside the block. Organic matter in water is sucked, settled and decomposed by EBB bacteria clarifying the water.