Gold'Activ information One 12 vials box treat up to 360 liters (12 water changes) Neutralizes and removes the chlorine compounds of tap water Adapts and transforms tap water in an optimal water for Goldfish Favours Goldfish acclimatization in cold water tank Contributes to the well-being of Goldfish When should Gold'Activ be used ? When starting a cold water aquarium, use Gold'Activ to prepare tap water When doing a water change use Gold'Activ to prepare tap water Comment utiliser Gold'Activ ? Aquarium size Dosage 0 à 30 liters 1 vial for each water change 31 à 60 liters 2 vials for each water change 61 à 90 liters 3 vials for each water change