Eco-Balance friendly Probiotic Bacteria for a Balanced Aquarium Environment Probiotics for Core System Health Research has demonstrated that friendly probiotic bacteria are key to maintaining a balanced healthy aquarium environment. The normal processes in an aquarium upsets this balance which can allow unfriendly bacteria and algae to dominate and this can negatively effect water quality. Eco-Balance uses friendly probiotic bacteria as a natural way to restore and maintain a balanced aquarium environment that promotes beneficial bacteria while helping to reduce the numbers of bad bacteria resulting in a clean healthy aquarium. Directions for Use: CAUTION: When using for the first time consider a half-dose as the potent bacteria in Eco-Balance may cause oxygen levels in the water to temporarily drop. Shake well before using. Dosing: Add 10 ml per 10 gallons of aquarium water. For best results Eco-Balance should be added weekly as part of a routine aquarium maintenance program as this will allow the helpful probiotic bacteria to continue to block out the unfriendly bacteria.