Seachem Pristine - 8.5 fl oz.

Seachem's Pristine naturally improves the biological filtering capacity of your water through natural bio-augmentation! Proving bacteria to help break down excess food and waste, Pristine eliminates toxic ammonia and nitrite in your fresh or salt water aquarium! The unique blend of bacteria used in Pristine thrives in poor water quality and low oxygen environments. Helps combat nasty films and nuisance algaes.

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Shake well before use. Turn off UV/ozone. Use 1 capful (5 mL) for each 40 L (10 US gallons). Then use a maintenance dose of 1 capful (5 mL) per 80 L (20 US gallons) with additions of livestock or the disruption of the biofilter through cleaning or medications. Antibiotics should be removed with fresh carbon and a water change before adding bacteria. Allow 2 or 3 days for the bacteria to become established before using UV sterilizers or ozone. Recurring problems with high nutrients can indicate overstocking, overfeeding or inadequate filtration.