Aquavitro seed will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome". Seed is formulated specifically for the aquarium and contains a synergistic blend of aroebic, anaerobic, and faculatative bacteria which facilitate the breakdown of waste organics, ammonia, nitrates and nitrites. Use 5 ml for every 10 gallons on the first day with a new aquarium. Use 5 ml for every 20 gallons for the next 7 days.