Top Fin Aquarium Readistart Nitrifying Bacteria Starter

Top Fin Aquarium Readistart Nitrifying Bacteria Starter (4 oz)

Improve the water in your aquarium with Top Fin Readistart Nitrifying Bacteria Starter. Perfect for start-up and maintenance, this product allows for the immediate introduction of fish and naturally reduces ammonia. Use when setting up a new aquarium, performing a water change, adding new fish, changing filter media, after medicating, or when ammonia or nitrites are detected. Only at PetSmart.