EcoBio-Block Natural Water Clarifier & Odor Remover Medium Stone

EcoBio-Block Stone for Aquariums, Medium – Natural Water Clarifier and Odor 15

• This volcanic stone releases essential vitamins and calcium in the water to make it beneficial for drinking
• The stone is made from natural microorganism to help eliminate unwanted smell from the water

EcoBio-Stones are made of volcanic rock and white cement and are infused with unique and effective beneficial bacteria spores, which are activated by water and organic waste. It makes aquarium tanks clear and clean by regularly dispersing beneficial bacteria into your tank. It lasts for 1.5 to 2 years.