The Planted Tank Forum - View Single Post - Benibachi Additives
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Old 03-19-2012, 02:04 AM   #3
Max Kenji
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I'd recommend putting 5 balls in the aquarium and the rest in the canister filter. Once you put the balls in the water, they will absorb harmful substances in the water, they can stay active up to a maximum of 2 years. If algae grows on the balls, just use a tooth brush to clean them off.
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