FritzZyme? TurboStart? 700 Freshwater offers the ultimate in aquatic health. Its original live nitrifying bacteria rapidly eradicate the toxic ammonia and nitrite preventing the so-called new tank syndrome and allowing immediate introduction of aquatic life. Its effective biofilter foundation safeguards against fish loss lending FritzZyme? the distinction of delivering life-saving benefits. With FritzZyme? TurboStart? 700 tank cycling is performed in five days or less - a safe natural approach to water treatment that could not be achieved without it. Boasting 15 times the concentration of the freshwater strains found in FritzZyme? 7 this premium product provides superior water quality and aquascaping success.