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Feature

Removes toxic ammonia and nitrite, naturally, using the right beneficial bacteria
Eliminates new tank syndrome
Safely add fish immediately
100% Natural live nitrifying bacteria
Cannot be overdosed

Description

One and Only Live Nitrifying Bacteria removes toxic ammonia and nitrite, instantly working to prevent new tank syndrome by establishing a biological filter in your newly set-up aquarium. Use when setting up a new tank, after a disease treatment or water changes. 8 ounce size for freshwater aquaria up to 120 gallons. One and Only has no sulfur or other offensive odors. Made by the recognized expert in aquarium nitrification and microbiology.