Aquarium Fish Tank Marine Salt Water PURE Water Care Bacteria Supplement, 4 Pack

Helps support a healthy saltwater aquarium and maintain clear water Reduces ammonia and nitrite Easy to dose and cannot be overdosed Aids in aquarium start-up Add 1 ball per 30 gallons PURE balls may float in saltwater due to differences in density, then will slowly sink within several hours PURE can also be added to the filter and will still work effectively while keeping it contained within the filter Designed for BioCube and Nano Reef Aquariums

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