Fertilization is perhaps the single most basic and important element necessary to create an environment conducive to maximum production and growth of fish. SportMax is specifically formulated for sportfish ponds. Pond fertilizer works by stimulating the growth of phytoplankton; the base of the food chain in ponds. Growth at the base is transferred up the food chain, ultimately leading to increased biomass of top predators (i.e., bass). Fertilization typically increases fish production by three to four times that of an unfertilized pond.