One & Only is 100% nitrifying bacteria. It is used to regulate the ammonia and nitrite concentrations when a fish tank is put into service, after water renewal or following sanitary treatment. It instantly creates a bio-filter. instantanément un bio-filtre. Our nitrifying bacteria are the result of the very latest scientific discoveries and are used in live-ponds and public aquariums around the world to regulate ammonia and nitrite levels.

They can be added after a major water change or treatment for a disease without risk to the herd.

Benefits of One&Only :

• 100% natural
• Made in France
• Developed by Dr Tim’s