One of the finest liquid organic fish fertilizers produced in the Pacific Northwest using fresh fish carcasses and fish bones. Many fish fertilizers do not contain bones, which have approximately 27% phosphorus, 18% calcium plus an array of micro-nutrients. Fish On goes through a 200 mesh screening operation to be sure of no clogging. Can be used for foliar sprays and hydroponic systems. Mix 2 ounces per gallon of water.