Self-Cleaning Filter Media constantly moving around and rub against each other Simply Hook up to an Air Pump and getting all the benefits of oxygen in the water and a super charged bio filter Oxygen Rich Water combined with strong nitrifying- handle large amounts of ammonia and nitrite compare to other type of filter Easy to take out Intake Sponge provides additional physical filteration Comes with Enough Media similiar to K1 micro will float at first and start tumbling in a few days
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